Features Using the chip for TPA3116, the amplifier's maximum power can get to 50W, while 5A at 12V, and the actual output power reaches 30W X 2 and 4 ohms. With high-fidelity and clear powerful sound, the digital amplifier has no auditory noise. No noise is generated even at maximum power output via engineers spending a lot of time and effort to optimize the circuit. Supports quality assurance, such stereo amplifier can keep long service life, easy to use. After many inspections before leaving the factory, digital amplifier's quality is guaranteed. Specification:Item Type: Audio amplifier Output Power: 50W + 50W Power Requirements: DC9V-24V Bluetooth Distance: At least 12m (barrier-free) Bluetooth Protocol: BT 5.0 Speaker Impedance: 4Ω-16Ω products Package List:1 x Audio Amplifier Note:Please note that the product does not come with an adapter. Package List 1 x Audio Amplifier