This fully functional calculator has a GSM bug hiddend inside it!
Just stick your SIM card into the device and place it on someone’s desk then call the GSM cellular number.
Once automatically connected you can listen to the conversations and sounds around where the unit was placed.
Perfect for keeping an ear of anyplace you want from anywhere in the world!
Super long battery life!
GSM band module: 900/1800/1900 ,
Voice sensitivity: -75db,
Battery Standby time: Up to 35 days ,
Charger power: 5VDC at 500mA ,
|Battery Life (Continuous Use)
3 - 5 days