1,Output power: 3W 2,Built-in FM radio 3,Usb cable &Lithium battery powered 4,Small and sample design Function List: ... devices stored MP3, WMA format music files[FM Radio] Built-in FM Radio,radio module, surrounded antenna, automatic station search, pristine sound quality, easy ... H50mmSpeaker N.W: 140g Speaker Accessories: [Standard Accessories]: a, USB cable 1pc b, 3.5MM audio line 1pc c, user manual ...