Product Description

Two way covert communication via mobile phone networks
Optimized inductive coil creates strong power for earpiece
Can support Works with earpeice
Built-in top sensitive 38dB microphone to pick up whisper voice

with this supper micro GSM earpiece you can hidden it in your CAP,T-SHIRT,COAT, it is best way for voice transfer in anywhere.

  • GSM Bands: 850/900/1800/1900MHz
  • Max transfer power: GSM900 Class4 2w,DSC1800 Class1 1W
  • Sensitive: -102dBm
  • Dual battery: 400mAh
  • Working time: 400mAh working 4+- hours,
  • Volume: 3 level adjust
  • Working temperature: -25 degree – + 70 degree
  • Voltage: 3.4-4.5V
  • Current: 200MA
  • Standby current: 1MA


A: Intall the battery to micro earpiece, plug in your ear.
B: Cut GSM SIM card to Micro SIM card(like iphone4 SIM card size), plug into the GSM module, please check the correct direction.
D: Press the Power Button for 3 seconds, your will listen “Power on Start” voice prompt from your earpiece.
During power on status press this button for 3 second again it will power off, you will listen “Power off” voice prompt from your earpiece
You can press voice button to adjust the volume, three level(large,middle,small), when it adjust to large volume you will listen “di,di” sound in earpiece, press to change in cycle.
Now, install finished you can phone call the SIM card number, you can listen and speak.
1 x gsm transmitter
1 x A680 earpiece
1 x USB cable






 order now