Cubilux USB C to 2 Ways Headphone Jack Splitter offers an easy solution to share audio without bothering people around during flight or train. The built-in 96 Khz/24-bit Hi-Res DAC greatly boost the sound quality and reproduce music with deep bass and abundant details. One of the jack(on the left side with headset icon) supports in-line microphone and volume control and the other jack is for listening only, which also make the adapter ideal for co-working during on-line meetings. You can also attach a 3.5 mm 4-pole TRRS microphone into the headset port for recording and hear your performance with headphones connect to the headphone port, and you can even monitor real-time playback with professional song recording APPs like “GarageBand”(iOS) and “BandLab”(Android).