small GSM Box and wireless earpiece - It's all you need.
Features of GSM Box
- Two way covert communication via mobile phone networks
- Optimized inductive coil creates strong power for earpiece
- Built-in top sensitive 38dB microphone to pick up whisper voice
Working Principles of GSM Box
- Build-in quad band GSM module that works in 850/900/1800/1900MHz mobile phone networks.
- Once insert a GSM SIM card and turn on the power, it will automatically pick-up calls from any mobile phone or telephone. The powerful inductive coil will creat strong signals to drive earpieces within 60cm distance.
- One pc 35db top sensitive microphone ensures your partner hear the whisper voices, even the GSM Box is hidden under the clothes.
- The Reset button allows you to cut off audio output signals to avoid earpiece detectors.
- GSM Box has a built-in rechargeable 950mAh battery. It supports 6 hours talking time. Full recharge takes 4 hours.
What in the package:
- 1 GSM Box (including charger and cable)
- 1 earpiece and battery
Box size: 53*37*15mm Weight: 45g