Specification:Name:Wireless SpeakerModel No:Big BossCapacity 1200mAh maxPower: 3WCharging time about 2 HoursWorking time 5-8 HoursProduct size: 88x113x125mmPackage including1* Bluetooth Speaker1* Audio Cable1* USB Charging Cable1* User ManualFeatures:1. It uses a high-performance Bluetooth 5.1 smart chip to make the connection simple, fast and stable. The connection range is up to 10m.2. Built in 1200 mAh high-capacity core, it has a long duration and the medium volume playback time is 5 to 8 hours.3. 57mm Rutie-boron with bass diaphragm, the stereo effect is more powerful so that you can enjoy the 3D sound experience.4. Support BT/TF/U disk/AUX/FM and other playback modes.5.Easily compose music scene, double speakermatching mode, create stereo sound effect.6. Built in intelligent noise reduction microphone, it can ensure high-definition hands-free calling without carton.Whether it's your smartphone, tablet or laptop - if it's Bluetooth, you'll be able to establish a wireless connection between your speakers and the player to enjoy your favorite songs and albums without the hassle of wires.