... User can lying on the bed to the wall or ceiling projector to watch a movie• life ... rechargeable lithium battery, for 2 hours’ displayNoise level: 20 dBProjector fixing: table, ceiling, wall Multimedia interface: AV ... rechargeable lithium battery, for 2 hours’ displayNoise level: 20 dBProjector fixing: table, ceiling, wall Multimedia interface: AV ... WMV, VOB, MOV, FLV, ASF, DAT, MP4, led video projector