- Import Polaroid polarized lens provide the best protection for eyes in, efectively prevent ultraviolet rays, bewildered light and harmful blue light

- Freely telescoping boom speakers, 270 rotatable, freely adjustable and comfortable wearing.

- Max volume 88dB with a better sound quality.

- Built-in Li battery provides 3~5 hours continual talking and Bluetooth standby time of 5~7 days.

- Suitable for various operating platform and portable with compact size.

- Supports all bluetooth function devices handsfree answer calls.

- Supports connect the music in the cellphone, the computer or the MP3 via the Bluetooth adapter.

-  Operating frequency range: 2.4GHz. 
-  Bluetooth: V3.0. 
-  Wireless operating range: 10m.  
-  Talk time: 3-5 hours. 
-  Audio code: 15 bit
-  S/N: > 60dB
-  Standby time: 5~7 days
-  Operation temperature: - 10~ 55'C