Features 1,The module uses high-quality electronic components, stable performance and high output power 2,30W output, low power consumption, very good sound quality, energy saving 3,The mono digital power amplifier board has good sound effects, stable performance and high efficiency 4,Good compatibility, very suitable for DIY transformation of audio equipment, enjoy high sound quality 5,Recommended speaker impedance is 8 ohms (4 ohms 6 ohms can also be used) Specification Features: The module uses high-quality electronic components, stable performance and high output power. 30W output, low power consumption, very good sound quality, energy saving. The mono digital power amplifier board has good sound effects, stable performance and high efficiency. Good compatibility, very suitable for DIY transformation of audio equipment, enjoy high sound quality. Recommended speaker impedance is 8 ohms (4 ohms 6 ohms can also be used). Specifications: Condition: Material: Electronic Components Power amplifier chip: TPA3110 Output power: 1X30W (mono, requires two stereos) Recommended speaker impedance: 8 ohms (4 ohms 6 ohms can also be used) Package list: 1 x Digital Amplifier Board Package List Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.