High capacity battery,support long time playing. Line-In function,can be an attachment notebook,mp3,mp4,mobile phone. ... -pressure injected plastic•High capacity battery,support long time playing.•Line-In function,can be an attachment notebook,mp3,mp4,mobile ... speaker,enables you enjoy amazing music out of doors.•Built-in high capacity rechargeable battery which support long playback time.•Loudspeaker ...