Product Introduction: This is USB sound card which support volume output adjustment and bass adjustment.Transmitting microphone input signal and stereo output signal through USB cable.It could connect to devices such as computer,Pad,smartphone and ,etc.It is very suitable for connecting audio, audio and video conference, audio and video live broadcast, game entertainment, teaching and other places. Product Features: Support /Linux//IOS/Android/ system Support 16bit/44.1Khz, 16bit/48Khz audio sampling rate Support16~600ΩImpedance headphone; Support volume output adjustment and bass adjustment Support one 3.5mm headphone port, one 3.5mm microphone port; Type-C charging port Product Specifications: USB Version-USB2.0 Support audio format-PCM Microphone type-electret microphone 16Ωheaphone power-26mW 32Ωheaphone power-38mW 150Ωheaphone power-38mW 300Ωheaphone power-21mW 600Ωheaphone power-16mW Charging voltage-5V/130mA Bare size-70.5 x 80.3 x 21.2mm Working environment temperature-15 to +55℃ Color: Black Material: aluminum alloy Package Contents: 1 x USB C Sound Card 1 x USB Cable 1 x English manual 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.