1.Appearance patent no:201230073135.2 2.Piano lacquer spraying surface 3.various colors optional Specification: Model NumberYS ... ≥60dB Case MaterialABS ColorOptional Features: Appearance patent no:201230073135.2 Piano lacquer spraying surface, elegant and honourable.. Digital audio decoding chip ... Mp3,mp4,cellphone,laptop,pc,pad,your best music partner. Piano lacquer surface notebook speaker,big sound