... small size 3,Receive stereo music 4,Fast delivery bluetooth audio receiver,bluetooth stereo receiver , transmitter Model: IN-BTR006FeatureCompact ... .5mm line-in jack allows you to play other external audio sources, such as MP3, MP4 etc. SpecificationBluetooth specification: ... 300mADimensions: 45×33×8mmWeight: 14g What's in Box* Bluetotoh Audio Receiver* User Manual * USB Cable Packing* 50pcs/ctn* ...