... Audio Stereo Power Amplifier Amp For Mp3 Mp4 Ipod SKU:JB408 Description:Features:1, RCA ,MP3 Input ,Can be used as Ipod ... ,MP3/MP4 headphone amplifier 2. Mini size easy ... : 1.0 % Audio signal Input Method: RCA input (back panel), Mp3 Input(Back panel)8, Llight and Firm Aluminum alloy case ...