Features: 1. AUTOMATIC PAIRING INTELLIGENT CONTROL: Pick it up from the power case and it will auto-pair each other.  And the next time you use it, it will be auto-connected  to the device you connected last time.  2. USE IN PAIRS OR INDIVIDUALLY: Bluetooth V5.0 technology make it applicable in more scene;  3. 3000MAH POWER BANK: Mini, Light Weight, but powerful, very convenient when in emergency.  228.5h for music and 30 times of charging for earbuds.  4. bluebooth V5.0: Fast & Stable connecting, supports All device with Bluetooth like IOS or Android.  TWS true wireless stereo with left and right channel: 1-To-2 connection, can be connected to two device at the same time.   5. CVC8.0 NOISE CANCELING: Higher sound quality, no sound delay;  6. 4 LEVEL POWER DISPLAY: Clearly to know the power life, no more worry about the electricity.     Instruction: 1.Music: Short Press for play & pause;  Double click on the main earbud for next song;  Double click on the other earbud for next song;  Treble click on the main earbud for volume up;  Treble click on the main earbud for volume down;  2.Incoming Calling: Short Press for answer;  Long-press to reject;  Music play & pause;  3.On the line: Short Press for hang up;  4.Voice Assistant;  Short Press to activate Cortana, Siri, Google Assistant,etc;     Specification: Material:ABS;  Color: Black, White;  Power Bank Capacity: 3000mAh;  Earbuds Capacity: 50mAh;  Standby time:120h;  Music Time:4-5h;  Charging Time: 1h;  Waterproof Grade: IPX5;  Weight of Each Earbud: 3G;  Weight of Power Bank: 79G;  Gross Weight: 119G;  Size of Earbud :20.1x14.5x12.5mm;  Size of Power Bank: 76x31x50mm;  Size of Package: 82x132x36mm;     Package Include: 2x Mini Bluetooth Headphones;  1x Charging Power Bank;  1x USB Charging Cable;  4x Earplug