New Mouse Type GSM Bug With Call Back Function
Specification
Dimensions : 68mm x 39mm x 18mm
Work with bands (800MHz, 900MHz, 1800MHz 1900MHz)
SIM Card slots - work with GSM sim card ( not for 3G)
Microphone range : 5-7 meters (radius)
Power input: AC100~250V 50/60Hz
Power Output: DC 5V, 400-500mA
No distance limited, user can listening everytime everywhere
Stand-by time: 10 days
Easy to set-up
Control by any phones / mobile phones
Built-in rechargeable battery
You can hear this Sim Card Spy Ear from anywhere, and just dial in to this Sim Card

Moreover :
Standby time: 3~5 days in sound activated mode; 6~15 days in non-sound activated mode; 30~40hours for flashlight
Operation: Put SIM card inside; hold the button to"A" and send sms"GDM" by cellphone to the inserted card;
hold the button to"B" and its in sound-activated mode, will dial the cellphone back when there is sound.
Hold the button to"A" and its not in sound-activated mode; dial the inserted number when you want to check its surrounding