Long Transmission Wall Listening Device Wireless Listening System Built In Microphone

Wireless Listening System

One back end can support many front ends

Introduction

1.This wireless listening system consists of wireless transmitting part and receiving part, the wireless transmitting parts can be perfectly fit with a variety of electric equipment as camouflage, it can obtain evidence and does not affect the normal work as an electrical appliances.

2. Built-in high sensitivity microphone,its pickup is wide and the space range it can monitor is about 80 square meters.

3. Low power consumption , built-in high-performance rechargeable lithium batteries,it can work more than 60 hours continuously.

4. Long transmission distance,which is about 500-700m in the urban visual environment.

5.This wireless listening system is widely used in the family, hotel, warehouse,office,conference room ,criminal scene etc.

Technical Parameters

1,Wireless Transmitting Parts

Types: LED lamp, wall lamp, strip, charging treasure, wireless router, chargers, electronic calendar, remote control, smoke box, cigarette case.(optional) according to real need

Pickup radius: 3-5 m

Channel:has 10 different optional

Ideal transmission radius: outdoor environment: 1000m
Urban real visual environment: 500-700 m

Working current: 10-15 mA

Working voltage: DC 5V

Transmission power: 40 mW

Antenna: built-in antenna

MIC pickup sensitivity: - 58 db

Ground noise: less than 20 Hz

Working time: 220 v It can keep working all time with connecting 220V power source, it can work more than 60 hours continuously with built-in lithium battery .

Charging time: about 3 hours (1000 mAh), about 6 hours (20000 mAh rechargeable treasure)

2,Receiving part:

Size: 110 * 57 * 39 (length * width * height in mm)

Battery: 7.4 V / 2800 mAh(lithium-ion battery)

Continuous working time: 5 hours

Channel: 16

Power:5W

Weight: 240g

Receiving sensitivity:0.20μV@20/25KHz typical

Audio power rating:1 W

Audio distortion: 5% or less

The power voltage:7.5V DC ±20%

Working temperature:-25℃~ + 60℃

Have playback function

The recording file format:WAV

Storage:32GB

With headset

The recording time:500 hours

USB2.0 Extract: support