Model Number: VTF-MC03 Compatible with: Speakers, Amplifier, Player, Digital-to-Analog Converter, Professional Audio Equipment, Stage Equipment Power Output: 2x30W Note: 1. The higher the voltage does not necessarily mean louder sound. This is a common misconception. Only the correct power supply and compatible speakers can deliver optimal sound quality. 2. The output power of the amplifier is determined by the power supply and speakers. 3. The amplifier input typically requires 1.5V2V. If your decoding output is between 30mV and 1V, it is insufficient. Even with a compatible power supply and speakers, the amplifier may not achieve full 2x30W output. 4. This product requires self-assembly. Color: Black Material: ABS Dimensions: 9 x 6.1 x 2.9 cm (W x H x D) Package Contents: 1 x Bluetooth Audio Amplifier Module 1 x Screwdriver The package includes only the items listed above; other accessories are not included. Note: Due to lighting effects and differences in display screens, the color of the item may vary slightly from the images shown. Measurement error is permitted within +/- 13 cm.