I7-mini Wireless Bluetooth Earphone With Charging BoxModel: i7-mini Input: DC 5vTransmission Distance: 12mPlaying Time: 5-6 hoursCharging Time: 1-2 hoursStandby Time: 100 hoursplease pair the two earphones frist, please do not open bluetooth of your phone first,please pair two earphones as followingHow To Connect The i7-mini  -Use Two Earbuds Together 1) Press two earphones at the same time until LED flash 2) Double click one of earphone, until another no light on one earphone 3) Open the bluetooth on your phone 4) Find out the earphone on bluetooth and connect it 5) No LED on two earphones that means connected.When You Charge The Headset Fully,Please Pull Out the Charging Cable Slowly and Softly !!!In Order To Prevent The Lower End of The Headset Off.Note: When you are in a call, only one earphone hears the sound, and the other earphone sounds silentProduct features: battery display, call function, support for music, multi-point connectionproduct design:1. Touch Bluetooth headset2. Intelligent noise reduction, waterproof and sweat proof3. After taking out the headset, it will automatically connect to the phone

• Mini in-ear wireless invisible design;

• Super Mini Size and hidden in the ear, no wearing burden;

• Ergonomic earphone design, stable in the ear, good for driving, sports, business, or leisure;

• Bluetooth Connection

• Deep DPS noise-reduction microphone ensures clear call quality;

• Voice prompt for pairing, calling, turn on/off;

• One function button for on/off, song switch, language change, receive call.