Cheapest GSM Ear Bug (R800)

Small GSM bug for audio monitor with voice-activated, quad band, adjust voice sensitivity by SMS (X005)

Description:
GSM bug. Actually, it is a audio monitor device. You can insert a GSM SIM card into it, put it anywhere you want to listen. And then you can call it using another phone. You can hear the voice around it and others don't know you are listening.

Specifications:
* Dimensions: 52mm X 38mm X 15mm
* 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: 10 days
* Working time: 4 hours

Caution:
Do please insert the SIM into the slot in the correct direction.
Charge the SIM card amount
LED Light indication will be activated after the SIM card is correctly inserted.
SIM will be completed initialization and maintain in stand-by status, and The light will be off and it is ready to go. Just dial the SIM card number, you could hear the sound around the SIM card.
Take out the SIM card 10 second later after the LED is off.
Please do not use it to engage any illegal activity.
Work with bands GSM (800MHz, 900MHz, 1800MHz).