_x005f_x000D_ Dual-channel Digital Audio Power Amplifier Board Stereo Class D 30W for MP3 HW-404 _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ Specifications: _x005f_x000D_ _x005f_x000D_ Input voltage: 8-26V _x005f_x000D_ Amplifier type: Class D _x005f_x000D_ Number of channels: dual channels _x005f_x000D_ Output power: 15W+15W _x005f_x000D_ Output impedance: 4Ω-8Ω _x005f_x000D_ Efficiency: up to 90% _x005f_x000D_ Sound quality: much less than 10% distortion. _x005f_x000D_ Protection: Output short circuit protection, over temperature protection. Self-recovery _x005f_x000D_ Module size: 43*55*14mm/1.69*2.17*0.55in _x005f_x000D_ Package weight: 21g _x005f_x000D_ _x005f_x000D_ Instructions: _x005f_x000D_ _x005f_x000D_ It is recommended to use a 4Ω-8Ω speaker with a power of no more than 10W. _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ The product has the function of output short circuit protection and overheat protection, and turns off the automatic recovery function after restart. Refer to the wiring diagram for the specific connection method. _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ Notes: _x005f_x000D_ Please allow 1-3mm differs due to manual measurement. _x005f_x000D_ Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding. _x005f_x000D_ _x005f_x000D_ Included: _x005f_x000D_ 1 X MP3 Power Amplifier Board