Specification: _x005f_x000D_ Chip: TPA3116D2 _x005f_x000D_ Power supply: DC12-24V _x005f_x000D_ Output power: 50Wx2 _x005f_x000D_ Signal to noise ratio: 100db _x005f_x000D_ Energy efficiency:>90% _x005f_x000D_ Channel: Dual channel output _x005f_x000D_ Product size: 66 * 58 * 28mm/2.59 * 2.28 * 1.10inch _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ Note: _x005f_x000D_ Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! _x005f_x000D_ Please allow 1-2cm measuring deviation due to manual measurement. _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ Included: _x005f_x000D_ 1 x Digital Audio Amplifier Board 1. Powerful Output: This amplifier board delivers a dual-channel output power of up to 50W*2, making it perfect for powering high-end audio systems and speakers. 2. Advanced Chip Technology: The board features the advanced TPA3116D2 chip, which is a 50W stereo analog input D-class audio amplifier with minimal external components mounted on the circuit board. It can be used to drive speakers directly, using external analog audio sources as inputs. 3. High-fidelity Sound: With a signal-to-noise ratio of 100db, this amplifier board provides high-fidelity sound output, delivering clear and dynamic sound quality. 4. High Efficiency: With an efficiency rating of over 90%, this amplifier board minimizes heat generation while maximizing power output, making it suitable for long-term use.