【2-in-1 Headphone Adapter】:Support USB A/USB Type C to 3.5mm Female Audio Jack Cable.supports listening + speaking. Easily adds a 3.5mm TRRS 4-pole aux port (integrated microphone-in and audio out interface),USB C hidden design,beautiful,multi-purpose, makes your work and life more efficient 【WIDE COMPATIBILITY】: Support Desktop PC,Laptop， tablet. Smartphones: Pixel 4 (XL)/3 (XL) /2 (XL); 【HGIH QUALITY SOUND】: The sound sample rate is up to 24 bit / 96 kHz, which is built into audio DAC Smart chip for independent sound decoding. It brings HiFi music experience and enriches your life and fun. 【EASY TO USE】: The ZJKJHJY Adapter doesnt need driver, but please connect the adapter with headphones/ earphones first and then with your smart device; The ultra-thin and convenient design allows you to carry freely, and you can enjoy music anytime, anywhere; 【USER FRIENDLY DESIGN】: This ZJKJHJY USB A/C to 3.5mm female sound card is small and mini, very convenient to carry, with user friendly design, this adapter cable can stand 100000+ bending tests, which makes this adapter much more durable.