Features:
1.Dimensions : 52mm x 38mm x 15mm
2.24 hour non-stop power supply
3.Work with bands GSM (800MHz, 900MHz, 1800MHz). Not suitable for either CDMA or 3G network!
4.Microphone range(Meter): 5~7(Radius), 4 levels
5.Receive sensitivity: -+10K
6.Working temp: -40~50'C
7.Responding frequency: 1.2K~800Khz
8.Stand-by time: 10 days
9.Working time: 4 hours

Package included:
1 x GSM Spy Device
1 x Power Adapter
1 x USB Cable