Features:
GSM voice monitor
Voice actives
Call back function/dialing back
Smallest security device
Support position
Support USB charger
SIM card audio bugging device with high-sensitivity microphone that can monitor the surrounding sounds at the same time
Highly covert, not easy to discover


Specification:
Interfaces: Android
Bands: 850MHZ, 900MHZ, 1800mhz, 1900mhz
Listening distance: up to 15m
No light, after installed Sim card about 10 second, it's will turn on
Position: send Message DW to the SIM card
Sound Recall: Send Message 1111 to the Sim card, First use, please call and communicate about 30 Second
Send Message 0000 to end of the Sound Recall
Dial the SIM number and you can monitor the voices or sounds around the bug


How item works?
Install a sim card to the cable (Sim card not include) (as picture) ----- connect the cable to 5V USB Power (5V USB power Not include) ---- Use your phone call it -----Sound real time monitor OK