Instruction for the first time use:

First, when you receive the product, please charge the charging box for about 8 hours, when charging, please do not put the earphones into the charing box to charge, otherwise will be damage to the eraphones’ battery. After fully charged(about 8 hours), please disconnect the power, then you can charge the earphones for about 3 hours for a full charge. When do not use the earphones, please collect them in a small storage box, NOT in the charging box, otherwise will also cause damage to the earphones’ battery as well as the charging box’s.

Connection Instruction:

Firstly, pair the 2 earphones, and then connect to phone, steps just as follow:
1.Press the two earphones for about 3 seconds at the same time, and you will hear a short prompt and the indicator lightsshow blue and red fast flash alternately.
2.Choose one of them(any one of bothas you like), press it for about 1 second, and you will see this earphone you choose flashes blue light slowly, and the other one still flashes blue and red light fastly, which means they are paired. 
3.Open your phone’s Bluetooth, and search the Bluetooth name "MI03_TWS” and connect it, after connected successfully, the indicator lights flash slow blue light(both of the two earphones). Now everything has done, and you are ready to use them.

Note:

If the earphones are out of power, please charge it for about 1.5 hours and follow the above steps.

If you just want to connect one earphone to your phone(not one pair), then you follow the step 3 directly after you turn on the earphone.

If the indicator lights flash not just like the above steps mentioned, please try to turn them off, and try again.
Specifications:
Bluetooth version:V4.1
Working area:accessibility of about 33ft
Grade :class 2
Working frequency:2.402-2.48GHZ
Charging voltage:5V
Battery capacity :40mah
Charging time :about 1.5hours
Talk time :about 2hours
Standby time:about 120hours
Music playing time :about 2hours
Dual USB interfece
Total output:5V-1A
Input:5V-1A
Battery capacity:700mah
Package Includes:
1 x Pairs of Earbuds
1 x charging box
1 x User Manual