Features: DA310 is a multifunctional K-song entertainment audio decoding and playback machine built from a new type of high-fidelity customized chip. The chip is equipped with built-in DSPand9 EQ sound processing and independent ear playback function Supports fiber optic, coaxial, Bluetoothcompatible 5.3 reception, USB drive, PC-USB, AUX multimode input Supports 192K 24BIT analog-to-digital conversion and bypass passing. Any wired input can be synchronized to multiple audio devices. The audio of playback devices such as televisions, computers, mobile phones, set-top boxes, etc. can be connected to traditional speakers, power amplifiers, or headphones through various wired or wireless Bluetoothcompatible inputs The Bluetoothcompatible transmission function can also wirelessly transmit audio to devices such as Bluetoothcompatible speakers or Bluetoothcompatible headphones Standard remote control, A fully functional remote control switchfor playing karaoke or audio effects, and supports the selection of computer and OTG mobile multimedia playback remote controls, providing multiple usage options to meet the diverse needs of users for music playback, blockbuster audio, and entertainment karaoke viewing. Specifications: Material:Aluminum Alloy Size:approx 11.3x2.7x6.3cm/4.45x2.48x1.06in Power Adapter:US/EU/UK/AU Supports Bluetoothcompatible 5.3, fiber optic, coaxial, USB drive, PC-USB, AUX multimode input . Supports wireless transmission of fiber optic, coaxial, USB drive, PC-USB, AUX input signals to Bluetoothcompatible headphones or Bluetooth speakers Sound) 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 Package includes: 1 Set DA310B Audio Converter