ITEM NAME:Mini Digital Amplifier Board Plate Audio Volume Control Module No Noise Amp W8N8 Mini Digital Amplifier Board Plate Audio Volume Control Module No Noise Amp W8N8 Mini digital amplifier board board with small size that is suitable for many digital products. It has excellent performance in noise cancellation. You can hear every noise just without an audio input connection. Stereo two-channel output high on sound quality and adjustable volume. If you're ready for the power supply of 5V, you can output 5W + 5W power and drive small speakers directly (4ÃŽ ©, 8ÃŽ ©). Double-Panel wiring perfectly solves the problems of land I balance and potential crosstalk between channels caused by the wiring. Small in size, it is useful to put in many digital products. You can via USB directly supplied with electricity Material: PCB; rated voltage: 2.5-5V; . Max Voltage: 5.5 V Item size: 2.5 * 2.2 * 1 cm / 1 * 0.9 * 0.4 inches Weight: 2 g 0.1 oz Package List: 1 * Digital amplifier modules Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.The measurement allowed error is +/-1-3 cm..Double-Panel wiring perfectly solves the problems of land I balance and potential crosstalk between channels caused by the wiring. Mini digital amplifier board board with small size that is suitable for many digital products.