Feature 1Working hours up to 22-26 hours, built-in 600 MAH lithium polymer battery, long service life, support edge charging and use. 2Using cSR8675's high-end Bluetooth chip, its sound quality is much better than CRS8670 chip. 3More stable and efficient transmission, audio transmission to your Bluetooth, up to 10 m/32.8ft. 4Small size, easy to carry, strong compatibility, long Bluetooth distance. 5Easy to use, plug and play, echo cancellation technology gives you good sound quality.Condition: 100% Brand NewItem Type: Audio AdapterColor: Shown as PictureMaterial: ABSBluetooth Chip: CSR8675Bluetooth Version: Bluetooth V5.0Built-in Battery: 600mahWorking Time: About 26HAudio Performance: APTX/APTX LL//APTX HD/AAC/SBCBluetooth Distance: >10m//32.8ftCharging Method: Micro USB 5V/0.5ACharging Current: 200-300mAInput and Output Connection: 3.5mm Stereo Interface, Fiber InterfaceCompatible: for Android, for IOS System Phones and for PAD, and All Bluetooth Audio Devices .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Host4 x Power Cord1 x Instruction Manual