Kinivo BTX350 Wireless Bluetooth Speaker Wireless Bluetooth speaker seamlessly streams music from bluetooth-capable smartphones, tablets, and computers Class-D amplifier provides high output sound performance; Speaker features bass boost, volume control, and forward/reverse buttons Included 3.5mm audio cable allows use with iPods or other non-Bluetooth devices; Features suspension-cone speaker drivers with passive subwoofer Built-in rechargeable lithium-ion battery provides up to 5 hours of wireless music; Includes USB charging cable for use while battery is charging Sleek, portable design; Measures 8 inches wide by 3 inches high by 2.25 inches deep; 1 year limited hardware warranty