Specification :

Introduction:
GSM Transmitter (spy phone) is a spy listening device that have unlimited range to listen voice over any gsm cellphone. Get The facts before it gets too late. Listen discreetly and find out what is going on before you lose what you have. The GSM transmitter is the latest and unique technology in using the GSM transmitter module. This transmitter enables you to listen from an unlimited range around the world. This technology has rapidly developed allowing for small and powerful bugging / listening devices to enable you to listen to the target area from many many miles away.
For example you could leave this transmitter in your home or office in London and listen of what is going on while you are in America(USA) or Canda or Africa....
It's wonderful listening device with amazing prefect sound quality.

We have fully Digital equipped work shop which our engineers are able to make any custom made GSM voice transmitter listening device for special use.

GSM transmitters enable you to sit at your home, office or even in a different city or country and simply dial the SIM number and listen or remotely activate the transmitter to phone you as soon as a voice is detected.

Specifications:
Easy to install, and no configuration (just put phone card in)
Work with bands (800MHz, 900MHz, 1800MHz). Please check if it can work with your local system format before purchase
Weight: 0.18kg
Size: 2.8 x 1.6 x 0.8 cm . Compact Design
Not suitable for both CDMA and 3G network!
Key Features:
" Super-sensitive audio surveillance.
" Frequency: 900, 1800, 1900
" Embed four condense microphone
" 24 hour non-stop power supply
" All GSM SIM card compatible
" Microphone range(Meter): 5~7(Radius), 4 levels
" Receive sensitivity: -+10K
" Working temp: -40~50'C
" Responding frequency: 1.2K~800Khz
" Stand-by time: 7 days
" Working time: 4 hours
" Notification via telephone or message after voice is detected.