... lithium battery 2, Power rating: 3W 3, Speaker unit:Single Portable wireless speaker1, aluminum shell2, simple design3, easy operate4, carry to anywhereProduct ... Features10 colors of aluminum shell, 2.0 channel, great sound ! Portable speaker with compact bass design streams music.Easy charging with ... -battery (USB chargeable) for max 6 hours playtimeWe also recommend ! Portable wireless speakers A1