-1002L MINI Bluetooth 5.0 DC 5-24V Wireless Audio Digital Power Amplifier Stereo Board 100Wx2 1. Bluetooth 5.0 version provides higher transmission efficiency and a transmission distance of up to 15 meters (without obstruction). 2. Equipped with a sizeable heat sink for efficient heat dissipation. 3. Features a potentiometer for volume adjustment and an on/off switch for easy control, ideal for DIY speaker projects. If using a metal enclosure, ensure the Bluetooth antenna is properly extended. 4. Uses a copper DC connector designed to handle high current with minimal heat generation. 5. Incorporates 4x 470uF high-quality capacitors to ensure stable power storage and continuous power supply, supporting consistent audio performance. 6. Includes a DC power cable compatible with the input interface of the device. Even without a dedicated DC adapter or battery, connection is possible. Adaptation Supply Voltage: 5-24V (compatible with 9V/12V/15V/18V/24V adapters; higher voltage recommended) Power Output: - 12V: 24W + 24W (8 ohm), 40W + 40W (4 ohm) - 15V: 32W + 32W (8 ohm), 60W + 60W (4 ohm) - 19V: 64W + 64W (8 ohm), 80W + 80W (4 ohm) - 24V: 72W + 72W (8 ohm), 100W + 100W (4 ohm) Parameter: Product Name: HIFI Bluetooth Digital Power Amplifier Board with Filter 2X100W Model: -1002L Chip Solution: Standard With Filter: Yes Compatible Speakers: 50W-300W, 4 ohm to 8 ohm Number of Channels: Stereo (Left and Right) Bluetooth Version: 5.0 Bluetooth Transmission Distance: 15 meters (unobstructed) Protection Features: Overheating protection, Short circuit protection Color: Black Material: Metal + PCB Package Contents: 1 x Bluetooth 5.0 Digital Amplifier Board 1 x Shell 1 x Screwdriver 1 x Power Cord Note: The power switch on the board is a standby switch. When turned off, the device enters a low-power standby mode. To completely cut power, disconnect the DC plug, especially for long-term storage. Tip: Optimal output power requires sufficient audio input and adequate power supply voltage and current. Higher supply voltage results in greater output power. Output power varies with speaker impedance. With sufficient voltage and current, higher impedance speakers (ohms) will produce relatively lower power output. Package includes only the items listed above. Other accessories or devices shown are not included. Note: Lighting and display settings may cause slight color differences between the product image and the actual item. Measurement tolerance: +/- 1-3 cm.