Features: Experience studio grade sound with the MAX97220 headphone amplifier board, featuring balanced to single ended conversion that delivers 2W output power and 90% energy efficiency for listening. Engineered with low capacitors, this compact amplifier supports 2.5V-5.5V input while maintaining optimal thermal for prolonged durability. Perfect for audiophiles seeking refined sound reproduction, musicians requiring precise monitoring, and gamers craving immersive sound across portable players, Bluetooth-compatible speakers, and car sound systems. Seamlessly integrate this versatile amplifier into home theater setups, professional recording studios, or on the go devices to sound, live instrument feed, and mobile entertainment systems. Transform ordinary headphones into driver with its superior dynamic and noise reduction capabilities, making it essential upgrade for electronics projects and sound configurations. Specifications: Component: Circuit Board Package Includes: 1Pc Amplifier Board note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.