1. TPA3116D2 is a high-performance Class D stereo amplifier chip with an energy efficiency of more than 90%. This high-efficiency feature makes it perform well in applications that require high power output. 2. High switching frequency: Supports switching frequencies up to 1.2MHz, which helps avoid AM interference and provides clearer audio output. 3. Adopting a proprietary hybrid modulation scheme, it achieves great power consumption improvements and further improves energy efficiency. 4. Good compatibility, high-performance audio amplifier chips can achieve performance upgrades, providing users with a flexible upgrade path. 5. Wide application: It can be applied to audio devices, such as headphones, speakers, etc., especially suitable for portable audio devices, meeting the scenarios with high requirements for sound quality and volume. Product name:Audio digital power amplifier board Power input:DC12-24V Audio input:AUX/Bluetooth 5.0 Output power:30W*2 when input DC12V, 50W*2 when input DC24V Output impedance:2-4 ohms Dimensions:80x50mm/3.15x1.97in Color:As Shown Material:plastic Package Contents: 1 * Digital Amplifier Only the above package content, other products are not included. Note: Light reflection 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.