Product Review

Description:

Bluetooth tech: V4.2+EDR
Effective distance: long effective pairing distance up to 33inch 
Reception level of sensitivity: -42Db
Frequency: 2.4GHZ
  Standby time: 120 hours
Charging Time: about 1-2 hour
Talking/Playing time: single earbud mode: 4-5 hours; One pair earbuds mode:2-4 hours
Working temperature: -10 Celsius -55 Celsius
How to use:

Two piece pairing
1. long press the power button of two pieces earphones together until the light  flash between blue and red alternately.
2. double click the power button to enter pairing mode, there it will remind "ready to pair".
3. turn on the Bluetooth on your device and search the earphone's name to
connect. When the led flash slowly in blue, it means finish pairing successfully

One piece pairing
1. long press the button on the earphone until the light flash between blue and red alternately, it
means ready to pair.
2. Then turn on the Bluetooth on your device, and connect it with the user 
manual mind,then it will remind: pairing success
Tips:
in stereo mode, when you make a phone call, you can only hear the voice from one of the earbuds 
What can you get:

2 x Wireless Earbuds
1 x Charging Box
1 x USB Charging Cable
1 x User Manual