Features: 1. Plug and Play 2. Support digital devices with Type-C interface audio input and output 3. Compatible with Win 7/8/10, Mac OS X, iOS 10 and Android 4.0 and above operating systems 4. HiFi sound quality, no noise, clear conversion 5. Support voice/call (you need to bring your own 3.5mm headset that supports wire control) 6. The blue indicator light is on when plugged in Product Specifications: 1. Supported standards: OMTP (national standard)/CTIA (American standard) headset automatic switching 2. Decoding chip: Realtek ALC5686 3. Core material: single crystal copper 4. Shell material: one-piece aluminum alloy sandblasting + anodizing 5. Product length: 12.5mm+/-0.5mm 6. Product weight: 8g 7. DAC sampling rate: 32bits/384KHz 8. Signal-to-noise ratio/SNR: greater than 100dB

http://olla.gr/ta12-r2-usb-c-type-c-male-to-3.5mm-audio-female-single-crystal-copper-braid-earphone-adapter-grey/