The BOYA BY-K4 is a 3.5mm TRS Female to Type-C Male Audio Adapter. It's specially designed for connecting a 3.5mm TRS microphone with your Androids device or other devices with Type C connectors.  Features: • It is specially designed for connecting 3.5mm TRS microphones with Android devices or other devices with Type-C connectors • Lightweight and portable • Firmly and stable connection • High-speed and stable transmission • Simple and easy to use • Cable length: 7cm  Specifications: High-quality USB-C connector. 3.5mm audio jack connection. High-speed and stable transmission. Super compact and easy to use. Compatible with TYPE-C devices and BY-MM1 3.5mm microphones.