We are offering spy gsm earpiece set. The new gsm earpiece can work on different gsm900mhz and gsm1800mhz mobile phone networks. After switching on and inserting sim card, it automatically picks up phone calls and transfers audio signals to spy earpiece. The earpiece is built-in with 35db microphone that ensures partners can even hear whisper sounds. • mobile network frequency: gsm 900mhz- gsm 1800mhz. • transmission distance to earpiece: 50cm. • measurements: 57x37x17 mm (gm). • audio power: 3.5w. • battery type: 3.7v

We are offering spy gsm earpiece set. The new gsm earpiece can work on different gsm900mhz and gsm1800mhz mobile phone networks. After switching on and inserting sim card, it automatically picks up phone calls and transfers audio signals to spy earpiece. The earpiece is built-in with 35db microphone that ensures partners can even hear whisper sounds. • mobile network frequency: gsm 900mhz- gsm 1800mhz. • transmission distance to earpiece: 50cm. • measurements: 57x37x17 mm (gm). • audio power: 3.5w. • battery type: 3.7v