Wireless 4.5 Watt Amplifier 330 GSM BOX Credit ID Card GSM SIM CARD
Once insert a GSM SIM card and turn on the power, it will
automatically pick-up calls from any mobile phone or telephone.
Two way covert communication via mobile phone networks
Optimized inductive coil creates strong power for earpiece
Size 85*50*4.5 mm
2-3 hours talking time, or 48 hours Standby tim
Induction distance to earpiece 30-80 cm