Technical characteristics Lossless music format: wav flac ape mp3 SD card U disk playback. Built-in dual-channel balanced amplifier, super driving ability, easy to push 15-inch stage sound. Ultra low distortion: 0.08% THD Output power: 50W2 Ultra wide frequency response: 6HZ-8KHZ -3DB Conversion rate: 240V/VS Power supply voltage: 12V-14.5V Volume size: 197MM197MM46MM Body material: all aluminum.Color: Silver / Black (please leave a message for the color you need). Technical applications: power amplifiers, headphone amplifiers. Packing accessories: amplifier, remote control, manual, adapter power supply, USB data cable. PLEASE INSPECT YOUR ITEMS WHEN THEY ARE RECEIVED. The item "2019 professional hifi50W2 wireless Bluetooth small with card USB amplifier" is in sale since Wednesday, July 31, 2019. This item is in the category "Sound & Vision\Home Audio & HiFi Separates\Amplifiers & Pre-Amps". The seller is "wolf6911" and is located in . This item can be shipped worldwide.