Product Review

What you get?
1.Bluetooth Earbuds x1Pair
2.Charging Case x1PC
3.Micro USB Cable x1PC
4.Spare Ear Caps x3Pairs
5.Ear Hooks x1Pair
6.User Manual x1PC

Specification:
1.Bluetooth Version: V4.2+EDR
2.Supports: HSP/HFP/A2DP/AVRCP
3.Charging Interface: Point-Contact
4.Charging Port: Micro USB
5.Earbud Dimension/Weight: 28*20*28mm; 5g*2
6.Charging Case Dimension/Weight: 80*60*30mm; 50g
7.Battery Supply/Capacity: (Li-ion battery inside)430mAh/Charging Case; 50mAh/Earbud
8.Charging Time: about 1-2 hours
9.Playtime: Single Earbud gives 3-4 hours and a set gives 2-3 hours. (the actual using time changes with the song types and volume requirements)

How to Pair Twins Earbuds with my phone?
1.After you wear the 2 Earbuds, push and hold-in both of the 2 Earbud's Multi-function Buttons simultaneously for 5-7 seconds, you will hear the voice prompt, "Power On", and one or several beeps. (Please be patient and do NOT release the buttons for at least 3 seconds after hearing the voice prompt "Power On". See Note,below)
2.The Twins Earbuds will connect with each other, and there will be several beeps, & voice prompts, "connected" "left channel" "right channel" in turn. (This means that the Twins Bluetooth Earbuds have paired with each other successfully.)
3.Now open the Bluetooth setting on your mobile phone, search and click the model "K2" to pair and connect. After a while you should hear voice prompt "Second device connected".
Note:
If you release the Multi-function Buttons, immediately when you hear the voice prompt, "Power On", then the Twins Earbuds will not pair with each other, nor with any secondary device, - they will only be switched on. You need, instead, to wait a second or two for the "beeps" to let them start pairing with each other and be ready to pair with secondary devices.