This is a professional and extremely small inconspicuous GSM tracking & transmitter measuring just 38x36x19 mm (includes 1050mA battery pack).

It can also be left behind in a room, vehicle or placed covertly inside just about anything and when dialled into from anywhere in the world you will silently be able to listen to conversations and surrounding sounds with outstanding quality whilst connected to the GSM network!

Simply dial any SIM card you insert inside our Intelligent GSM Listener and silently connect transmitting any conversations and sounds over the GSM network from a radius of 5 meters, that's right 5 METERS! This means you can actually listen into a large room. There is absolutely no hum or feedback distortion and the listening quality really needs to be heard to be appreciated!

Our new Ultra Small GYN21 has a built-in Li-ion rechargeable battery module which can provide up to 7 days standby audio surveillance before a recharge is needed! In fact the unit only activates when you are actually listening in and powers down when you disconnect to conserve its battery status.

Features include:
This device can be called at any time.
Unlimited listening distance - call from anywhere in the world
Listen to conversations and surrounding sounds up to 5 meter radius
Compact and lightweight specification weighing just 0.15KG

Specifications:
Network: GSM
Power consumption: 1050mA standby and monitoring mode
Battery: 1050mA lithium ion battery
Dimensions: 38x35x19 mm (includes 1050mA battery pack)
Charge voltage: 5VDC 500mA
Charger input: 100-240VAC
Package includes (fully boxed):

Ultra small PRO GSM Tracking Devise
Mains power supply
Easy to follow user guide