|Room 414, Number 113,Gucheng west road,Shijingshan Diistrict,Beijing,China.||email@example.com|
Payment & Shipping Terms:
|Battery:||7.4 V / 2800 MAh(lithium-ion Battery)||Channel:||16|
|Audio Power Rating:||1 W||The Power Voltage:||7.5V DC ±20%|
|Storage:||32GB||The Recording Time:||500 Hours|
listen through walls devices,
listening through walls stethoscope
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.
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
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
The recording time:500 hours
USB2.0 Extract: support
Contact Person: Mr. Gerrywang