Mental Beats 2Rock HD Portable Bluetooth Speaker Indoor Outdoor 2.1 Hi-Fi Cylinder Loud Speaker Supports USB/SD/AUX Inputs FM Radio, 4" Sub + Built in Rechargeable Battery Power Bank 2600mah Charge Devices HD Quality Sound 2&#46;600 mAh built&#45;in battery bank 4 inches subwoofer FM&#47;AM radio Leather strap for portable useSpecifications