Mini Bluetooth Speaker Portable Wireless Speaker Sound System 3D Stereo Music Surround. Support TF AUX USB. Features: - Battery capacity:Rechargeable lithium battery, the battery capacity of 1200mAh, can continue to play 3.5 hours - Can support 4 kinds of mode to playing music, bluetooth, TF, U disk mode, 3.5 mm audio line mode - Bluetooth version:V4.2+EDR - Bluetooth transmissio distance:10 meters - Frequency response range :85hz~20KHz - Sensitivity:80db+2db - Size:190mm 60mm 56m What's in the box 1 x Wireless Speaker 1 x Aux Cable 1 X USB Cable 1 x User Manual