S.M.S.L A200 Hi-Res Headphone Amplifier, Hi-Fi Audio Stereo Receiver, 2 Channel Amplifier Bluetooth 5.0 Receiver for Home Speakers, Home Theatre Audio Upgraded Power Amp with Bass Treble Control

Power consumption: two pieces of Germany Infineon's newSilicon Carbide DigitalAmplifier chips, higher sound quality with up to 92% efficiency further reduction. The new Bluetooth 5.0 technology with low power consumption and high sound quality makes wireless connection more convenient and efficient.
6 inputs: In terms of connectivity, the speaker supports Bluetooth, opticalfiber, coaxial, HDML audio, USB, line input and other possibilities tomeet of the user diverse use of the scene. Supports the HDML (ARC) audio return function, users can easily output audio via the HDML port on the TV, realizinga seamless connection to the home entertainment system
Audio HDMI (ARC) return function: With the HDMl(ARC) audio return function, users can easily output audio via the HDML port on the TV and thus create a seamless connection to the home entertainment system!
Other functions: Electronic volume control: eliminate potentiometer noise when adjusting the volume. ②Sound adjustment: Ind