Features:

Excellent audio quality, absence of the noise.
Safety – it won’t damage you hearing since safe output levels.
Tiny size of the spy earpiece
The color similar to ear’s natural color ,hidden and never be discover.

Walkie Talkie:
 
Wireless Range  Over 3000 Wireless Range Earbud Runs
Battery life  15 Hours On 1 Battery
Channel  16 Channel
Max Volume   93 @ 3kHz

 

Wireless Earpiece:
 
Dimension  3 x 5 x 7mm
Max Volume Output  3 kHz 93
General Volume Output   1kHz 73
Frequency   300Hz - 5kHz
Distortion Rate  < 2%
S/N Ratio   2kHz > 50dB
Battery type  Zinc Battery Style #416 (available anywhere)
Battery Life  Battery Life 15 hrs.
Weight  Weight (incl. battery) only 0.8g

Package includes:

1 X Mini micro spy earpiece
1 X battery (LR521 or LR379)
1 X Full range walkie-talkie
1 x charger
1 X manual