Crafted with meticulous 6-layer process Corrosion resistant/oxidation resistant, A+ drop protection rating Full interface compatibility with 3 input modes Equipped with RCA coaxial, AUX, USB, and SUB-OUT interfaces, it not only supports Bluetooth wireless connectivity but also allows direct connection to TVs, CD players, record players, and subwoofers Bluetooth V5.3 Connection distance up to 15 meters, faster, more stable, and more energy-efficient Professional DSP digital audio processing technology ensures high-fidelity sound quality through precise control of frequency allocation and dynamic power management. Dual-channel 600W high power High-power output ensures accurate reproduction of audio details, bringing you the ultimate Hi-Fi sound quality experience Product Name: Bluetooth 5.3 Dual-Channel HiFi Digital Amplifier Product Model: YS-KL5 Output power: 300W + 300W Frequency range: 20Hz-20kHz Bluetooth version: V5.3 (15 meters) Signal-to-noise ratio: ≥98dB Audio input: Bluetooth + USB + AUX Audio output: 2.0 + SUB OUT (supports subwoofer) Amplifier chip:TPA3255 (Imported professional-grade chip) Distortion:<0.5% THD Shell material:Zinc alloy (A+ drop protection rating) Speaker impedance:2-8Ω Input power:DC24-36V (the higher the voltage, the greater the output power) (The product printed words may vary depending on the batch, but this does not affect use) Plug Type:US Plug,it applies to Canada, India,Mexico, Thailand, the United States, the Philippines,Taiwan and so on. Voltage: AC110V Color: As Shown Material: Zinc Alloy Specification: US standard Package Contents: 1*Digital Amplifier 1*adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.