How to use:
Long press the middle button for about 8-10 seconds until the red light alternate with the blue light, this means the bluetooth is in the paring status.
Turn on your cellphone bluetooth, find the glasses " BTglasses" device and connect it. The paring is successful when the 2 light stops flashing.
After this 2 steps, you can listening music and answer or refuse a call.

Feature:
With Stable and Comfortable earbuds makes you enjoy an pleasant experience during your journey
Wireless listen to stereo music, set aside to answer the call automatically converted
Easy to operate, with Play & Stop button, Volume control button.
Extremely comfortable and secure for bicyclist, runners, Hiker etc.Enjoy music in the sun without d
You can get PHEVOS products with manufacturer warranty and superb customer service.

Specification:
Bluetooth version: V4.1+EDR
Transmission range: 10M
The battery specification: 120mAh/3.7 lithium battery

sizeof Appearance: 180*155*50mm
Standby time: about 6-10 days
Charging time: about 2-3h
Talk time: about 6h
Listening to music time: about 3h

Package Details:
1 x Black Headphone Sunglass
1 x Mini USB Cable
1 x Instruction Manual
1 x Glasses Case
1 x Cleaning Cloth
1 x Screwdrive