C6444 - AMPLIFIER MONO 20W RMSHigh power amp for various booster applications. Kit features short circuit and open circuit protection and has very low distortion (1% or less). Amplifier has red LED on indicator and will boost any tuner radio cassette CD player to room filling volume out of your speaker! Size of board: 3. 75 x 2. 1. Operates from 12VDC. Complete with all parts PC board and instructions. Skill Level 2.