Spy Inductive Bluetooth Glasses Earpiece Kit

It solved the problem of short transmission distance. 
You can hear clearly in invisible earpiece and whisper with partner by the new inductive bluetooth glasses.
No one will find this inductive bluetooth glasses is build-in transmitter for earpiece unless check it very carefully.
Bluetooth 2.0 module is built in the stand of glasses.
It pairs with Bluetooth phone in 10 meters of distance.
Pairing password: "0000". Bluetooth name: "T9"
It uses a small hidden button to control (pairing, on/off, redail, answer) .
Built-in rechargeable battery offer ~2 hours of working time and long standby time.
The Lens are transparent, anyone can use it for covert communication.
Built-in microphone for two way communication.

Earpiece Specifications:
Frequency Range: 200Hz~5400Hz
Distortion Rate: <2%
S/N Radio at 2KHz: >5KHz
Saturated Output(OSPL 90dB): 110dB
Ralative Sensitivity Limit: <-90dB
Static Current: 0.80mA
Battery Life (SR416SW battery):2.5~5hrs
Diameter: 9mm
Length: 12mm
Weight: 0.7g

Package Contents: