KINYO MS-305R - 2.0 Portable Speaker System - Red "Plug & Play" functionality is great for iPods, iPhones, iPads, Smartphones, Tablets & MP3 players Built-in rechargeable lithium battery Charges via any available USB port (USB charging cable included) Up to two hours music playing time per charge 3.5 mm stereo input compatible with all iPhones, iPads, iPods and most late model Smart Phones, Tablets & MP3 players