手持全频微波宽频段扫描·多频段同步探测·无线影音信号定位反偷拍窃听探测器（刑事技术侦查取证/信息安全检查/现场电子物证勘查装备）

 

手持全频微波宽频段扫描·多频段同步探测·无线影音信号定位反偷拍窃听探测器（刑事技术侦查取证/信息安全检查/现场电子物证勘查装备）

〖重要合规前置声明〗 本产品为国家管制类刑事技术侦查取证鉴定与信息安全检查专用特种装备，仅面向具备法定执法权限的各级公安机关、人民检察院、人民法院、国家安全机关、司法鉴定机构、保密行政管理部门及授权执法与安全保卫单位定向研发、生产与供应，严禁向任何个人、无资质企业及非授权单位销售或提供。本设备的购置、配备、使用与管理，必须严格遵守国家关于刑事技术侦查、信息安全保密、公民个人信息保护及警用装备管理的相关法律法规与行业技术标准，必须由经过专业培训、取得相应执法或技术侦察岗位资质的人员规范操作，严禁无资质单位和个人违规购置、使用、转让本装备，严禁将本设备用于法定执法任务及授权安全检查之外的任何用途，严禁利用本设备非法截取、监视、录制他人私密信息或侵犯公民个人隐私。

产品概述

手持全频微波宽频段扫描·多频段同步探测·无线影音信号定位反偷拍窃听探测器（亦称手持全频微波影音探测器、无线针孔摄影机信号扫描定位仪）是一款基于宽频段微波扫描与多频段同步探测技术的专业电子侦察与反监控装备，属于公安刑事技术侦查、信息安全保密检查及现场电子物证勘查领域的核心信号发现与定位装备。该产品专为刑事案件侦查、要人随卫安保、涉密场所防护及电子物证现场勘查中的无线针孔摄影机、窃听器及其他非法射频发射装置的快速发现、定位与清除深度定制，完美适配宾馆房间技术清扫、车辆反监控检查、会议室保密排查及机动性应急扫频等多种严苛工作场景。系统整合三频段扫描体系，同步覆盖1.2GHz、2.4GHz及5.8GHz三大民用无线影音传输核心频段，能够对半径约100米范围内的多个活动信号源进行同时探测、方向指示与频段识别，从根本上解决了传统反偷拍设备频段覆盖单一、扫描效率低、多目标分辨能力不足等实战痛点，能够为侦查员及安保人员提供主动、快速、直观的电磁环境态势感知与隐蔽威胁定位能力，是应对现代科技化、信息化犯罪与反侦察需求、维护司法侦查行为安全与公民隐私权利的核心刑事技术侦查取证鉴定装备。

技术原理

该探测器严格遵循宽频接收与射频频谱分析技术原理进行架构。设备内置一组高灵敏度宽带接收前端，配合专用的快速扫频算法与控制逻辑，对1.2GHz、2.4GHz、5.8GHz三个目标频段进行周期性不间断循环扫描。采样电路在每次循环中捕获各频段内超出环境底噪的异常射频信号，数字信号处理单元随即对信号的频率、带宽、调制特征及强度包络进行实时解析与分类，将其与数据库内已知的无线视频传输或音频监听信号特征进行比对筛选。

当探测到符合模拟或数字无线影音传输特征的信号时，系统综合设备自带的定向天线阵列采集的来波幅度信息，通过信号特征分析算法计算出信号源的大致方向与相对距离强度，并将结果以图形化方式呈现在3.5英寸高分辨率LCD屏幕上。操作者在屏幕上可直观读取当前空间中所有被发现活跃信号的频段归属、相对信号强度条及方位指示图标，通过移动设备并观察指示变化快速缩小搜索范围，直至精确逼近隐蔽的发射源位置。设备采用全被动接收工作模式，自身不产生任何射频发射，可确保探测行动全程不暴露自身存在，满足隐蔽侦查与秘密技术清扫行动的战术隐蔽性要求。

核心功能与合规实战价值

三频段同步快速扫描，实现核心无线监控频段全谱覆盖
设备独家集成1.2GHz、2.4GHz、5.8GHz这三个在民用偷拍窃听设备中应用最为广泛的无线影音传输频段，单次扫描周期仅约30秒即可完成全频段筛查，显著压缩了传统手动扫频所需的时间。这一频段组合从技术上完整覆盖了市面上绝大多数模拟与数字无线针孔摄影机、Wi-Fi摄像头、蓝牙窃听器等非法监控设备的工作频率，为侦查人员在进入未知环境时快速完成电磁威胁态势评估提供了全方位技术支撑，满足技术侦察行动中对环境安全排查时效性与全面性的双重法规要求。

多目标同步探测与可视化方向指示，精确引导威胁源定位
系统具备多信号源同时探测与分别显示能力，可在屏幕上同时呈现多个位于不同频段或相同频段的信号源，并以直观的图形化方式分别标示每个信号的相对强度与方位角。侦查人员可据此在复杂的城市电磁背景中快速厘清威胁分布，排除手机基站、Wi-Fi路由器等正常通讯信号的干扰，专注于对异常隐藏设备信号的追踪定位，最终在物理空间中精确找到安装于天花板、通风口、家具内部等隐蔽位置的非法监控装置，为后续的物证提取、司法鉴定及诉讼提供由技术线索迈入实物证据的关键突破口。

手持便携与全被动隐蔽侦查，满足机动性保密排查需求
整机含电池重量仅约860克，外形尺寸紧凑，采用全内置天线与一体化手持设计，开机即进入扫描状态，无需任何外部附件或网络连接，具备极强的单兵携行与快速部署性能。系统采用全被动接收、无任何射频发射的工作模式，在探测过程中不会产生任何可能暴露自身行动的信号，确保在刑事侦查外线跟踪、秘密驻地安检及反腐取证等高敏感任务中，技术排查行动本身始终保持隐蔽，严格符合执法技术侦察关于行动保密性的纪律要求。

直观操作与影像还原，降低专业技术门槛
探测结果全部在3.5英寸高分辨率LCD彩屏上以信号强度柱状图、频段指示及方位指针等通用易懂的图形语言呈现，操作界面简明，非通信专业技术背景的侦查人员或安保人员经短期培训即可熟练掌握。对于少数未加密的模拟无线影音信号，屏幕可直接还原显示摄像头所拍摄的黑白或彩色画面内容，为当场判定设备功能、初步评估信息泄露范围提供了最为直接的视觉依据，提升了现场勘查效率与物证保全的及时性。

合规应用场景

刑事案件侦查与技术反制清扫场景
在侦办贿赂、走私、非法拘禁等重大刑事案件过程中，当侦查人员需与证人、线人在宾馆、餐饮包间等临时会面场所接触时，使用本探测器对房间天花板、烟雾报警器、插座孔、装饰物等常见针孔摄影机隐藏部位进行快速全频段技术清扫，确保谈话内容不被第三方非法窃听录制，保障侦查行动安全与案件信息机密性。该程序化的技术反制措施严格契合刑事诉讼法关于侦查行为保密及公民合法权益保护的规定。

要人驻地与重大会议安保技术排查场景
在执行高级别政要来访、国际峰会或重大审判等安保任务前，专门安保小组携本设备对要人即将入住的酒店客房、会议室、接见厅及专用车辆内部进行全面预检，重点检查是否存在由不法分子预先布设的无线影音监控装置，确保核心警卫对象的活动空间绝对安全。此技术排查环节是大型活动安保及警卫勤务规范中明确要求的必要前置工序。

涉密场所定期保密检查与反技术窃密场景
党政机关、军事单位及重点科研机构的保密工作部门，使用本探测器对保密会议室、领导办公室、机要档案室及重要试验区域执行定期或不定期的反偷拍窃听巡检。凭借其宽频段覆盖及全被动探测特性，可在不中断正常工作秩序的情况下，有效防范通过无线针孔摄影机或窃听器进行的非法技术窃密活动，落实反间谍法与保密法关于涉密场所必须配置技术防范手段的要求。

电子物证现场勘查辅助与物证发现场景
在查处非法监控窝点、办理侵犯公民个人信息或非法生产销售间谍器材等案件时，现场勘查人员将本探测器作为第一道电子物证搜索工具，对涉案场所进行快速射频信号扫描，主动发现并定位正在通电工作的无线监控发射装置及配套接收设备，为后续的详细登记、扣押封存及司法鉴定检验提供精确的目标指引，完善了从现场技术搜查到实验室鉴定的电子物证取证链条。

核心技术参数

探测频段方面，本探测器同步覆盖1.2GHz、2.4GHz、5.8GHz三个民用无线影音传输主要工作频段，全面针对市面上常见的模拟及数字无线针孔摄影机、无线窃听器、Wi-Fi摄像头等非法监控设备进行有效侦测。探测半径标称约100米，实际效果视信号源发射功率及现场电磁环境而定。扫描速度一轮全频段扫描周期约30秒，可快速完成对空间电磁环境的初步清查。

显示与操作方面，设备配备3.5英寸超高分辨率LCD彩色显示屏，支持信号强度图形化指示、频段区分显示、方位角提示及对于未加密模拟信号的视频画面还原。操作逻辑简洁，开机即用，便于非通信专业人员掌握。工作模式为全被动接收扫描，设备本身不发射任何射频信号，确保探测行动隐蔽安全。

电源与物理特性方面，设备采用专用整流器与内置可充电电池供电体系，满电状态下持续工作时间约40分钟，满足单次场所全面技术清扫或机动性临时扫频任务的续航需求。主机外形尺寸约为190mm×140mm×40mm（不含天线），整机重量约860克（含电池），结构紧凑，便于单手持握与随身携行。

合规实战应用案例

某市公安机关在侦办一宗涉及公职人员严重违纪违法并涉嫌受贿的案件中，根据线索需在市区某酒店房间内与关键证人进行秘密接触并制作笔录。行动前，专案组侦查人员使用本手持全频微波影音探测器，对该房间进行了约两分钟的全面扫频。设备在2.4GHz频段探测到一持续发射的异常信号，屏幕指示信号源位于房间天花板消防烟感探测器方向。侦查人员随即进行近距离复扫，精确定位后发现一被伪装在烟感外壳内的无线针孔摄影机，设备屏幕同时还原出其拍摄角度正对会面沙发区域。专案组立即对装置进行了拍照固定与物证提取，成功排除了信息泄露风险，并据此顺线追查到了布设监控的涉案人员，该非法监控设备后经司法鉴定中心出具鉴定报告，成为定罪量刑的重要实物证据，全流程严格遵守刑事诉讼程序。

某大型国际体育赛事开幕式前夕，安保指挥中心安排专业排爆与反技术侦察小组对主会场贵宾休息室及多间政要接见厅进行最后一轮安全清场。技术小组使用本探测器对所有房间逐一进行拉网式扫描，在3.5英寸屏幕上发现一间休息室内同时存在1.2GHz和5.8GHz两个微弱异常信号，方向指示均指向同一侧墙壁的装饰画后方。技术人员撤下画框后，发现一个集成双频段无线发射模块的微型窃拍装置被牢固粘贴在墙壁上，其镜头正对会客区。技术小组立即对装置进行技术处理后移交情报部门开展反向溯源调查，同时在全场馆范围内展开了强化复扫，确保了开幕式及相关外事活动的绝对安全，该技术排查过程成为本次安保任务的典型案例被归档总结。

厂家信息：北京毕思特联合科技有限公司
网址：https://www.bestlh.com
地址：北京市亦庄开发区经海六路一号院尖子班 C9 独栋
电话：010-56526048

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Handheld Full-Band Microwave Broadband Scanner · Multi-Band Synchronous Detection · Wireless Audio/Video Signal Locator Anti-Spy Camera & Bug Detector (Criminal Technical Investigation & Evidence Collection / Information Security Inspection / On-Site Digital Forensics Equipment)

Global site URL：https://xilankeji.en.alibaba.com

〖Important Compliance Precaution〗 This product is a state-controlled specialized equipment for criminal technical investigation, evidence collection and forensic identification, and information security inspection, which is solely developed, produced and supplied to authorized law enforcement agencies such as public security organs, people's procuratorates, people's courts, national security organs, forensic identification institutions, confidentiality administration departments and authorized enforcement and security protection units with statutory authority. Any sale or supply to individuals, non-qualified enterprises and unauthorized units is strictly prohibited. The procurement, deployment, use and management of this equipment must strictly comply with national laws, regulations and industrial technical standards regarding criminal technical investigation, information security and confidentiality protection, personal information protection and police equipment management. Operation must be carried out exclusively by professionally trained personnel holding corresponding law enforcement or technical investigation post qualifications. Unauthorized units and individuals are strictly forbidden from purchasing, using or transferring this equipment. Any use of this device for purposes other than statutory law enforcement missions and authorized security inspections, as well as the illegal interception, surveillance, recording of others' private information or infringement upon citizens' personal privacy using this device, is strictly prohibited.

Product Overview

The Handheld Full-Band Microwave Broadband Scanner, Multi-Band Synchronous Detection, Wireless Audio/Video Signal Locator Anti-Spy Camera & Bug Detector (also referred to as the Handheld Full-Band Microwave Video Detector or Wireless Pinhole Camera Signal Scanner & Locator) is a professional electronic counter-surveillance and anti-monitoring device based on wideband microwave scanning and multi-band synchronous detection technology, constituting a core signal detection and locating equipment in the fields of criminal technical investigation, information security confidentiality inspection and on-site digital forensics. This product is deeply customized for the rapid discovery, localization and neutralization of wireless pinhole cameras, eavesdropping devices and other illicit radio frequency transmitters during criminal case investigations, VIP close protection, sensitive site security and on-site digital evidence examinations. It perfectly adapts to rigorous operational scenarios including hotel room technical sweeping, vehicle anti-surveillance inspection, conference room confidentiality screening and mobile emergency frequency scanning. The system integrates a tri-band scanning architecture, synchronously covering the three primary civil wireless video transmission bands of 1.2GHz, 2.4GHz and 5.8GHz, capable of simultaneous detection, directional indication and band identification of multiple active signal sources within a radius of approximately 100 meters. This fundamentally resolves the operational pain points of traditional anti-spy devices, such as single-band coverage, low scanning efficiency and insufficient multi-target resolution capability, providing investigators and security personnel with active, rapid and intuitive electromagnetic environment situational awareness and concealed threat localization capability. It serves as a core criminal technical investigation and evidence collection equipment for countering modern technology-driven and information-based crimes, anti-surveillance operations, safeguarding the security of judicial investigation activities and protecting citizens' privacy rights.

Technical Principle

The detector is architected strictly on the technical principles of wideband reception and radio frequency spectrum analysis. Its built-in high-sensitivity broadband receiving front-end, coupled with dedicated fast frequency-sweep algorithms and control logic, performs periodic uninterrupted cyclic scanning across the three target frequency bands of 1.2GHz, 2.4GHz and 5.8GHz. During each cycle, the sampling circuit captures anomalous RF signals within each band that exceed the environmental noise floor. The digital signal processing unit then performs real-time analysis and classification of the captured signals' frequency, bandwidth, modulation characteristics and strength envelope, comparing and filtering them against a database of known wireless video transmission or audio eavesdropping signal signatures.

When a signal matching the characteristics of analog or digital wireless audio/video transmission is detected, the system integrates the direction-of-arrival amplitude information collected by the device's built-in directional antenna array, calculates the approximate direction and relative distance strength of the signal source through signal feature analysis algorithms, and presents the results graphically on the 3.5-inch high-resolution LCD screen. The operator can intuitively read, on the screen, the band affiliation, relative signal strength bars and directional indicator icons of all discovered active signals in the current space. By moving the device and observing indicator changes, the search area can be rapidly narrowed until the operator precisely approaches the concealed transmitter location. The device operates in a fully passive reception mode, emitting no radio frequency transmissions itself, ensuring that the detection operation remains entirely covert and meets the tactical concealment requirements of clandestine investigations and secret technical sweeping operations.

Core Functions and Compliance Operational Value

Tri-Band Synchronous Rapid Scanning, Achieving Full Spectral Coverage of Core Wireless Surveillance Bands
The device exclusively integrates the three most widely used wireless audio/video transmission bands in civil spy camera and eavesdropping devices — 1.2GHz, 2.4GHz and 5.8GHz. A single scanning cycle takes only approximately 30 seconds to complete a full-spectrum sweep, significantly compressing the time required by traditional manual frequency sweeping. This frequency band combination technically provides complete coverage of the operating frequencies of the vast majority of commercially available analog and digital wireless pinhole cameras, Wi-Fi cameras, Bluetooth bugs and other illicit surveillance devices. It provides investigators with comprehensive technical support for rapidly assessing the electromagnetic threat environment upon entering an unknown location, meeting the dual regulatory requirements for both timeliness and thoroughness of environmental security screening in technical surveillance operations.

Multi-Target Synchronous Detection and Visual Direction Indication, Precisely Guiding Threat Source Localization
The system features the capability for simultaneous detection and individual display of multiple signal sources, presenting on screen multiple sources located in different bands or the same band simultaneously, with intuitive graphical indicators denoting the relative strength and azimuth of each signal. Investigators can thereby quickly clarify the threat distribution within a complex urban electromagnetic background, exclude interference from normal communication signals such as cell towers and Wi-Fi routers, and focus on tracking and locating signals from anomalous concealed devices, ultimately physically pinpointing illicit surveillance installations hidden in ceilings, ventilation openings, inside furniture and other concealed locations. This provides the critical breakthrough from a technical lead to tangible physical evidence for subsequent evidence recovery, forensic identification and litigation.

Handheld Portability and Fully Passive Covert Investigation, Meeting Mobile Confidential Screening Requirements
The complete unit with battery weighs only approximately 860 grams and features a compact form factor with a fully integrated antenna and handheld design. It is ready to scan upon power-up without any external accessories or network connection, possessing strong individual troop-carried and rapid deployment performance. The system operates in a fully passive reception, zero RF emission mode, generating no signals during the detection process that could potentially reveal the operator's own activities. This ensures that in highly sensitive missions such as criminal investigation field surveillance, secret safe-house security inspections and anti-corruption evidence collection, the technical screening operation itself remains entirely covert, strictly conforming to the operational security discipline requirements of law enforcement technical surveillance.

Intuitive Operation and Video Reconstruction, Lowering Professional Technical Barriers
All detection results are presented on the 3.5-inch high-resolution color LCD screen in universally understandable graphical language such as signal strength bar graphs, band indicators and directional pointers. The user interface is straightforward, allowing investigators or security personnel without specialized communications technical backgrounds to achieve proficiency after minimal training. For the occasional unencrypted analog wireless video signal, the screen can directly reconstruct and display the black-and-white or color image captured by the camera, providing the most direct visual evidence for on-the-spot determination of device function and preliminary assessment of the scope of information compromise, thereby enhancing on-site investigation efficiency and the timeliness of evidence preservation.

Compliant Application Scenarios

Criminal Case Investigation and Technical Counter-Surveillance Sweeping Scenario
During the investigation of major criminal cases such as bribery, smuggling or unlawful detention, when investigators need to meet with witnesses or informants in temporary meeting locations such as hotel rooms or private dining rooms, this detector is used to conduct a rapid full-band technical sweep of common pinhole camera concealment locations such as ceilings, smoke detectors, power outlet holes and decorative objects. This ensures that the conversation content is not illegally intercepted or recorded by a third party, safeguarding the security of the investigative operation and the confidentiality of case information. This proceduralized technical countermeasure strictly conforms to the provisions of the Criminal Procedure Law regarding the confidentiality of criminal investigations and the protection of citizens' lawful rights and interests.

VIP Residence and Major Conference Security Technical Screening Scenario
Before executing security missions for high-level dignitary visits, international summits or major trials, specialized security teams carry this device to conduct comprehensive pre-screening of hotel rooms, conference rooms, reception halls and dedicated vehicles scheduled for VIP occupancy, focusing on detecting any wireless audio/video surveillance devices that may have been pre-installed by malicious actors. This ensures the absolute security of the activity spaces of core protective subjects. This technical screening procedure is an explicitly required prerequisite step in large-scale event security and protective service operational protocols.

Sensitive Site Regular Confidentiality Inspection and Anti-Technical Espionage Scenario
The confidentiality departments of party and government organs, military installations and key scientific research institutions use this detector to conduct regular or unannounced anti-spy camera and bug sweeping inspections of classified conference rooms, leadership offices, confidential archives and critical test areas. Leveraging its wideband coverage and fully passive detection characteristics, it can effectively prevent illegal technical espionage activities conducted through wireless pinhole cameras or bugs without disrupting normal work order, fulfilling the requirements of the Counter-Espionage Law and the Law on Guarding State Secrets mandating the deployment of technical protection measures in classified sites.

Digital Evidence On-Site Examination Assistance and Evidence Discovery Scenario
During the investigation of illegal surveillance dens or cases involving the infringement of citizens' personal information, or the illegal production and sale of espionage equipment, on-site examination personnel use this detector as a primary digital evidence search tool. They conduct rapid RF signal scanning of the involved premises, proactively discovering and locating powered, actively transmitting wireless surveillance transmitters and associated receiving equipment. This provides precise targeting guidance for subsequent detailed registration, seizure, forensic examination and judicial testing, completing the digital evidence acquisition chain from on-site technical search to laboratory forensic analysis.

Core Technical Parameters

In terms of detection frequency bands, this detector synchronously covers the three primary civil wireless audio/video transmission operating bands of 1.2GHz, 2.4GHz and 5.8GHz, comprehensively targeting commonly available analog and digital wireless pinhole cameras, wireless bugs, Wi-Fi cameras and other illicit surveillance devices for effective detection. The nominal detection radius is approximately 100 meters, with actual performance varying depending on the signal source's transmission power and the on-site electromagnetic environment. The scanning speed for one full-band sweep cycle is approximately 30 seconds, enabling rapid initial clearance of the spatial electromagnetic environment.

For display and operation, the device is equipped with a 3.5-inch ultra-high-resolution LCD color display, supporting graphical indication of signal strength, band-differentiated display, azimuth prompts, and video image reconstruction for unencrypted analog signals. The operating logic is straightforward, ready to use upon power-up, and easy for non-communication professionals to master. The operating mode is fully passive reception scanning; the device itself emits no RF signals, ensuring the detection operation remains covert and safe.

Concerning power supply and physical characteristics, the device employs a dedicated rectifier and built-in rechargeable battery power system, with a continuous operating time of approximately 40 minutes on a full charge, meeting the endurance requirements for a single-site comprehensive technical sweep or mobile temporary frequency scanning missions. The main unit external dimensions are approximately 190mm × 140mm × 40mm (excluding antenna), with a total unit weight of approximately 860 grams (including battery), featuring a compact structure convenient for one-handed operation and on-person carriage.

Compliant Field Application Cases

During an investigation by a municipal public security organ into a case involving serious disciplinary and legal violations and suspected bribery by a public official, investigators, acting on a lead, needed to conduct a covert meeting with a key witness and prepare a statement in a hotel room within the city. Prior to the operation, task force investigators used this handheld full-band microwave video detector to perform a comprehensive frequency sweep of the room that took approximately two minutes. The device detected an abnormally continuously transmitting signal in the 2.4GHz band, with the screen indicating the signal source was in the direction of the fire smoke detector on the ceiling. Investigators then conducted a close-range re-sweep, which precisely located a wireless pinhole camera disguised inside the smoke detector housing; the device screen simultaneously reconstructed its video, revealing the camera angle was aimed directly at the meeting sofa area. The task force immediately conducted photographic documentation and evidence recovery, successfully eliminating the risk of information leakage. Based on this lead, they traced and apprehended the individual responsible for the surveillance installation. The illegal surveillance device later had a forensic examination report issued by the judicial identification center and became a critical piece of physical evidence for conviction and sentencing. The entire process strictly adhered to criminal procedure laws.

On the eve of the opening ceremony of a major international sports event, the security command center assigned a professional EOD and counter-technical surveillance team to conduct a final round of security clearance for the main venue's VIP lounge and several dignitary reception halls. The technical team used this detector to conduct a grid sweep of each room one by one. On the 3.5-inch screen, they discovered two weak anomalous signals in the 1.2GHz and 5.8GHz bands simultaneously in one lounge, both direction indicators pointing to the same location behind a decorative painting on one wall. After removing the frame, technicians discovered a miniature spy camera device integrated with a dual-band wireless transmitter module firmly adhered to the wall, its lens directly facing the reception area. The technical team immediately performed technical handling of the device before handing it over to the intelligence department for reverse tracing investigation, while simultaneously launching an intensified re-sweep across the entire venue area, ensuring the absolute safety of the opening ceremony and related diplomatic activities. This technical screening process was archived and summarized as a model case for the security operation.

Manufacturer Information: Beijing Best United Technology Co., Ltd.
Website: https://www.bestlh.com
Address: Building C9, Jianziban, No.1 Courtyard, Jinghai Sixth Road, Yizhuang Development Zone, Beijing
Tel: 010-56526048