Sykik SP016BT Black 22" long, powerfull Bluetooth W/ SD,USB,Headphone jack, AUX in, Built-In rechargeable battery, FM radio and remote controll,designed for your SmarthPhone,tablet or PC (Black) Over 21" long with high Power 10W RMS output power Easy connect wireless Bluetooth connection SD and USB slots with AUX in and Headphone jack 1200MAH built-in rechargeable battery, with external AA operation option. Full function remote with Equalizer mode control.