Super powerful function supports 3-way digital signal input:BT wireless: computer/mobile phone inputs audio signal through Bluetooth pairing,Type-B interface: wired connection to computer,Type-C interface: wired connection to mobile phone/tablet Super strong performance:Using dual PCM1794 decoder chips, 5532 seven op amp dual power supply circuit architecture, completely separate left and right channels, support 4.4 balanced output, no popping sound when turning on and off, clear and full sound quality, large dynamic range, recommended for use in high-end audio systems W610B uses Qualcomm OCC5215 Bluetooth module, supports LDAC mode(mobile phone This protocol must be supported. Open the options of the mobile phone and select it to use it) Super high appearance:Adopting visible transparent window, integral CNC processing and forming patented appearance, fashionable and stable, you can't put it down.System volume adjustment mobile phone/computer USB wired/Bluetooth connection adopts system tuning scheme to reduce interference and distortion and improve fidelity Power supply: 5V (Type-C interface) Dynamic range: 120dB@(1KHz A-) Signal-to-noise ratio: 120dB (@1KHz A-) Harmonic distortion: 0.0007% Channel crosstalk: -110dB (@1KHz A-) Frequency response: 20Hz-20KHz Output level: 1.8Vrms Output interface: Lotus port, 3.5MM port, balanced 4.4 port Input interface: Type-C port, Type-B port Bluetooth protocol: LDAC Apt-XAptX-HD AAC Bit depth: 16bit 24bit Sampling rate: 44.1K 48K 96K Colour:Black Material:Metal Package Contents: 1x audio decoder set 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.