Features: DA310 is a multi-functional entertainment audio decoding and playing all-in-one machine built by a new highfidelity chip. The chip has built-in DSP+9-segment EQsound processing and is equipped with an independent amp. It has been repeatedly adjusted by senior engineers. Supportoptical fiber, coaxial, Bluetoothcompatible5.3 receiving, Udisk, PC-USB, AUX multi-mode input; Support 192K 24BIT digital-to-analog conversion and Bypass function, any wired input can be synchronously output to multiple groups of audio equipment; Can connect TV , computers, mobile phones, set-top boxes and other playback devices through a variety of wired or wireless Bluetoothcompatible input centralized connection to traditional speakers or power amplifiers or headphones; . Specifications: Material:AluminumAlloy Power Adapter：EU/US/UK/AU Size:approx 11.3x2.7x6.3cm/4.45x1.06x2.48in Support Bluetoothcompatible 5.3, Optical fiber, Coaxial, U disk, PC-USB, AUX multi-mode input; Support increased high-quality microphone input, and the remote control supports Ksong reverberation and other sound adjustments. Support BYPASS function, 3.5AUXamp, Bluetoothcompatible transmitter, Optical Fiber, Coaxial synchronous output; Support Optical Fiber, coaxial, Udisk, PC-USB, AUX input signal into Bluetoothcompatible signal and wirelessly transmit to Bluetoothcompatible headset or Bluetoothcompatible speaker; Support mobile phone OTG, computer, TV through USB input audio signal conversion to analog signal output, Optical fiber and coaxial support up to 192kHz / 24Bit sampling rate input; Support multimedia remote control. Bluetoothcompatible reception, Udisk and PC-USB input can control QQmusic Package Includes: 1PC DA310 Receiver 1PC Remote Control 1PC Power Adapter 1PC Power Cable 1PC Optical Fiber 1PC 3.5mm toRCA Cable 1PC Antenna note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.