Super-sensitive audio surveillance. Much better quality 
Frequency: 900, 1800, 
Embed four condense microphone
Non-stop working with 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

Operating Procedure( Caution)

Do not insert the SIM into the slot in the wrong direction.
Charging up the device, Red and Green LED lights ON. When the device is fully charged up, only Red LED lights ON
Place the SIM card into the slot with the contact points facing down (according to the pictures indication)
The flash of red light indicates the SIM card is correctly inserted. SIM spy will completed initialization and maintain in stand-by status.
Dial the SIM card number, you could hear the sound around the SIM card spy
Please do not use it to engage any illegal activity

Accessories

1 x GSM SIM Audio Surveilance Device