Specification :

8 Socket GSM listening device
Model No:GM--08

Features:

Extremely easy to use
Frequency: 900 MHz
Compatible with all GSM sim cards
Embedded super sensitive condense microphones
24 hours continuous usage
Auto answer function
No sound or light from the device
Microphone range: ?m (radius)
Receive sensitivity: -+ 10K
Responding frequency: 1.2K~800Khz
Working temp: -10~50 degree
Lithium-ion battery
Charging time: 1-2 hours
Stand-by time: 15 days on a single charge
Operating Procedure:
1) Charge the device
2) Place the SIM card into the slot with the contact points facing down. Red light indicates the SIM card is correctly inserted. SIM spy will complete initialization and maintains in stand-by status.
3) Dial the SIM card number and you will hear the sound around GM-08.