Overview:The portable BT speaker is a multifunctional speaker which supports FM radio, TF Card & U Disk music playback and AUX IN music playback, compatible with almost all BT-enabled devices. It will bring you much fun and convenience.Features:[Wireless BT Technology] With BT5.0 technology, you can easily connect the speaker to almost all BT-enabled audio devices, enjoying wireless music.[Multifunctional] Supports TF card / U Disk music playback and AUX IN music playback; it also supports FM radio, free to enjoy news and music.[Duration Time] Rechargeable 1800mA Lithium battery supports 3-5 hours of working time. Powered via the Micro USB charge port.[Simple Operation] With buttons and big knobs, easy to control playing/pausing music, answering/ending calls, volume +/-, previous/next track, and adjusting radio frequency.[Classic Wood Grain Design] Vintage wooden design, stylish and unique to match your lifestyle.Specifications:Model Number: JY-66Frequency Response Range: 20Hz-18KHzSpeaker Unit: 57mm, 4Output Power: 5WSignal-to-Noise Ratio: ≥80dbBattery Capacity: 3.7V 1800mAhPlayback Time: 3-5 hours (depends on music volume)Charging Voltage: 5VColor: BrownItem Size: Approx. 16.4*11.0*8.7cm/6.45*4.33*3.42inItem Weight: Approx. 646g/22.78ozPackage Size: Approx. 16.5*12.5*9.6cm/6.49*4.92*3.78inPackage Weight: Approx. 735g/25.92ozPackage List:1 * Speaker1 * USB Charging Cable1 * 3.5mm Audio Cable1 * User Manual (English/Chinese)