Features 1、This is a mini digital power amplifier board, mainly act as digital signal processing technique and design hybrid signal processing and power integrated circuits. 2、Simple to operate, professional chip provides superior performance in the system. 3、Widely used in multimedia computer, portable audio, home theater, car stereo etc. 4、Mini size, very convenient to carry along. It's good, high efficiency and high fidelity. 5、Adopting of premium abs material, anti-corrosion and durable for long time use. Specification Condition:100% Brand New Material: ABS+chip Color: As Pictures Shown Item Type: Digital Power Amplifier Board Weight: Approx.49g No radiator; Suitable for any 4-8 ohm speaker Single power supply design Signal output function Dynamic range: 102 dB Mute and sleep input. Turn on and off pop-up suppression. Overcurrent protection. Over temperature protection Package List 1 x Digital Power Amplifier Board