USB C to 3.5mm Headphone Adapter is 12.5cm. Works very well with my previous wired headset, which I received with my previous cell phone, with the Google Pixel 4 and use it to make calls. Warning, I also bought another adapter that my phone does not recognize (the GPS 4 doesn't recognize it). A reviewer has rated this product 4.5 out of 5 by Etsy and said it's very good and that it works well for me - versiune n USB A to C Adapter - a good choice. Gen 2 USB C to USB c cable USB Port 480Mbps 10Gbps 640Mbps Length / 6.6FT,2M 3.3FT,1M 10FT,3M Plug&Play.