ITEM NAME:3 Pieces 5532 Stereo Pre-amp Preamplifier Tone Board Digital Audio Amplifier img *{margin:0;padding:0;.Double panel design, the sound effect is better. 3 Pieces Pre-amplifier Board. The board size is 40x50mm and the maximum height is 16mm, can be easily placed in any small size machine. People always bought together with.
