Wireless 3-5 M Radius 20Hz Wall Listening Device

High Sensitivity Wireless Listening System Device 3-5 M Radius Pickup Clearest Sound

Description

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. Low power consumption, built-in high-performance rechargeable lithium batteries, it can work more than 20-60 hours continuously.(Different modules)

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

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

Technical Parameters

Wireless Transmitting Parts

Channel:has 10 different options

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, Black module it can work more than 20 hours continuously with built-in lithium battery .

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

Receiving part

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

About Us

Beijing Heweiyongtai Sci & Tech Co., Ltd. was established in the beginning of 2008. We are a hi-tech enterprise specializing in supplying and trading Security Inspection equipment, EOD equipment, Anti-terrorism equipment, Intelligence device, etc. Our products are widely applied in public security bureau, military, custom, government security agency, airport, exhibition, etc.

Our company headquarters and showroom are located in Beijing, the capital of China. There are more than 400㎡ showing room where exhibits nearly hundred kinds of well-equipped products and equipments. Our staff are all qualified technical and managerial professionals to provide you satisfied service.

Our main products and equipments are as follows, and is increasing:

★EOD Equipment
★Security Inspection Equipment

★Anti Terrorism Equipment

★Investigation Equipment

Our factory Jiangsu Hewei Police Equipment Manufacturing Co.,Ltd was established in the year 2010.

We establised research centre and factory in Shenzhen in the year of 2014.

Overseas Exhibitions

If have any inquiries about our company or products, please contact the following information.