... fit for car,motor bike ,computer speaker and other home audio DIY device. 3, Compact Size: 4.6 (L) ... 5, It has flash rainbow light in the front panel and very beautiful at night. 6, Built in FM ... radio,Multi-functions for audio amp and fm radio 7, The detailed spec as ... .H.D: 1.0 % Audio signal Input Method: RCA input (back panel), Mp3 Input(Back panel)8, Llight and Firm Aluminum ...