ITEM NAME:TPA3116D2 2X50W DC 5-24V Digital Amplifier Board Class D Dual Channel Stere F3C7 TPA3116D2 2X50W DC 5-24V Digital Amplifier Board Class D Dual Channel Stere F3C7 Chip: TPA3116D2 Audio Type: Class D Input voltage: DC5-24V Operating Frequency: 20 HZ-20 HZ Output Type: 2.0 channel Amplifier board TPA3116D2 two-channel stereo 50 W * 2 A full range of protection systems with reverse power protection, speaker output protection against short circuit, but also with anti-shock switch design, switch machines without "POP" sound. Notice: The power supply is preferably 24 V, it can not exceed this voltage value! Please check double before applying the power, make sure the wiring is correct before the electricity. Size: 84 * 51 * 29mm colour: photo colour Material: metal Package Contents: 1 x Amplifier Board Only the above package content, other products are not included. 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 +/- 1-3cm.