Experience superior audio with this HIFI 2X100W Bluetooth Digital Power Amplifier Board. Featuring Bluetooth 5.0 for faster transmission and a longer range. A large heat sink ensures efficient heat dissipation, keeping your system cool. Easily adjust the volume with the potentiometer, which includes a power switch. A copper DC connector provides stable high-current power without overheating. 4*470uF capacitors guarantee ample power storage for consistent, high-quality sound. The included DC cable is compatible with the input interface for added convenience. Adaptable voltage: 5-24V (High voltage adapter recommended: 9V/12V/15V/18V/24V) Power Output: 12V------8ohm speaker/24W (left channel) + 24W (right channel), 4 ohm speaker/40W + 40W 15V------8ohm /32W + 32W, 4 ohm/ 60W + 60W 19V------8ohm /64W + 64W, 4 ohm/ 80W + 80W 24V------8ohm /72W + 72W, 4 ohm/ 100W + 100W Parameter: Product Name: HIFI with Filter 2X100W Bluetooth Digital Power Amplifier Board Model: -1002L Chip Solution: Domestic With or without filter: Yes Adapter Speaker: 50W-300W, 4 ohm-8 ohm Number of Channels: Left and right stereo (Stereo) Bluetooth Version: 5.0 Bluetooth Transmission Distance: 15m (Without Obstacles) Protection Mechanism: Overheating Protection, Short Circuit Protection Package Contents: 1* Bluetooth 5.0 Digital Amplifier Board 1* Shell 1* Screwdriver 1* Power Cable Note: The power switch on the board is a standby switch. The machine is in low-power standby mode when switched off. To completely turn off the power, disconnect the DC connector for extended periods. Tips: Ensure sufficient audio input and adequate power supply (voltage/current) for optimal output. Higher voltage results in greater relative power. Speakers with different impedances will have varying power outputs. At sufficient voltage and current, higher ohm speakers result in lower relative sound power. Please be aware!