Soundmatters foxL Pocket-Sized Audiophile Loudspeaker System (Black) (Discontinued by Manufacturer) Pocket-sized portable stereo speaker Lithium battery also doubles as woofer; 5 hours of use on a charge Hi-fi alternative to earphones Connects via standard 3.5-millimeter headphone jack Includes multi-language instructions, AC adapter, USB cable, 3.5-millimeter audio cable, travel pouch, and wrist strap