Your Search: -but-also-a-hidden-spy-audio-bug(5-15m-range)-Specification:-Frequency:-GSM-900/1800/1900MHz-Power-Supply-:-24-hours-Non-stop-Card-Compatible-:-GSM-/-SIM-Receive-Sensitivity-:--- 10K-Stand-by-Time-:-7-days-Working-Time-:-4-hours-Sensitive-Range