iBoost SBT615 High Powered Portable Twisted Bluetooth Speaker; Black Bluetooth V2.1 EDR One button controls play pause function 2 buttons control volume and song selection Auxiliary input for connection of non-Bluetooth music players 400mAh built-in rechargeable lithium battery - Charge time 3-4 hours, Battery life 3-4 hours Includes USB power cable and 3.5mm audio cable