Description: Gold plated interface, all interfaces output sound at the same time Capacitor+Standard 12V power supply to ensure high-quality audio requirements. ES9018 high technology is known as one of the best DAC chips today.Using patented 32-bit DAC architecture And time domain jitter canceller, can provide up to 135dB Signal-to-noise ratio (DNR) and -120dB. Output Interface: optical fiber + coaxial + AUX simultaneous output Bluetooth sampling rate: 44.1khz/48khz/96khz (the highest) Bluetooth sampling bits: 16bit/24bit (the highest) Bluetooth version: version 5.0 With a removable type 4580DD (JRC) JRC4580DD (enhanced version) is a double Operational amplifier with internal compensation circuit. Excellent channel separation JRC feature allows dual opamps to be used in single opamp applications parts, thus providing the highest packing density. Specification: Material: Aluminum Alloy Interface: US Port Supply Voltage: DC 9V or 12V/1A Bluetooth Protocol: APTX-HD/APtX-LL /Aptx/AAC/SBC Bluetooth chip :CSR8675. Decoding chip: ES9018K2M. Opamp chip:JRC458DD(replaceable). Size Chart: Size: Approx.98x88x33mm/3.86X3.46X1.3inch Package Includes: 1 Piece Audio Receiver 1 Piece US Standard Power Adapter 1 Piece Optical Fiber Cable 1 Piece 3.5mm Audio Cable 1 Piece Antenna Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! 3. Wish you a wonderful on-line shopping!