Features: Multi-Functionality and Versatility: The power amplifier module offers a wide range of audio input options, including Bluetooth 5.0, AUX, USB Flash Drive, and compatibility with computer USB sound cards. This versatility ensures seamless connectivity with various audio sources, making it suitable for diverse applications such as home entertainment, public spaces, and multimedia setups. Exceptional Sound Quality: By utilizing an advanced chipset, the power amplifier module delivers superior sound quality with high peak power outputs. The chip's AM interference suppression function ensures a clean and undistorted audio experience, perfect for audiophiles and enthusiasts alike. Stable and Efficient Bluetooth Connectivity: Equipped with Bluetooth 5.0 technology, the module offers reliable and high-efficiency wireless audio streaming with a range of over 15 meters in clear environments. This ensures a smooth and lag-free listening experience, making it ideal for both indoor and outdoor audio setups. Comprehensive Safety Features: The power amplifier module is designed with multiple safety protection mechanisms, including overvoltage, undervoltage, overheating, DC detection, and short circuit protection. These features work together to protect the module from potential damage, ensuring its reliability and longevity. Compact Size, Powerful Performance: Despite its compact design, the power amplifier module is capable of driving speakers with high power ratings and handling various impedances. This makes it an ideal choice for those who need a powerful audio solution without sacrificing space or flexibility. Its ability to integrate seamlessly into various systems further enhances its appeal as a versatile and high-performance audio component. Specifications: Product Model: ZK-502H Chipset: TPA3116D2 (With AM interference suppression function) Audio Input: Bluetooth + AUX + USB Flash Drive + Computer USB Sound Card (Plug and Play) Compatible Power Supply: 9-24V (High-voltage recommended for high power) Compatible Speaker: 10-100W; 4-8Ω Channel Number: Left and Right Dual Channel (Stereo) Bluetooth Version: 5.0 (>15 meters, unobstructed) Protection Mechanism: Overvoltage, undervoltage, overheating, DC detection, short circuit protection Size: 60*60*29mm Output Power: 12V - 8Ω / 12W*2, 4Ω/ 20W*2 15V - 8Ω / 18W*2, 4Ω/ 30W*2 19V - 8Ω / 32W*2, 4Ω/ 40W*2 24V - 8Ω / 38W*2, 4Ω/ 50W*2 Note: To achieve sufficient output power, ensure that both the audio signal input and the power supply voltage/current are adequately high. Remember, a higher power supply voltage directly correlates to greater output power, and a lower speaker impedance also contributes to increased output power. Package Included: 1 x Power Amplifier Board Module Kit