This is a charger compatible with the magnetic charging of Shokz bone conduction headphones. It has an aluminum housing for high durability and heat dissipation, and its compact size makes it convenient to carry. This is a high-end model that also supports fast charging. Please comment if you have any questions. The following is the official description: Shokz Earphone USB-C Charging Cable Conversion Adapter for Shokz Bone Conduction Earphones Shokz Type-C Conversion Micro Fast Charging Compact Portable Convenient High-Quality Materials Durable Safe and Stable Shokz Conversion Adapter (Compatible with Shokz OpenRun, Aeropex, OpenRun Pro, OpenComm, OpenRun Mini) (Black) Shokz Bone Conduction Earphone USB-C Charging Cable Conversion Adapter is compact and easy to carry. You don't need to bring various cables; you can connect a Type-C cable to this adapter to charge. This greatly reduces the hassle of carrying various charging cables. The compact design allows you to easily carry it anywhere, making it easy to take with you when needed outdoors. It's perfect for use in the car or to put in your travel bag. [Compatible Models] Compatible with AfterShokz OpenRun, AfterShokz OpenComm, AfterShokz OpenRun Pro, and AfterShokz OpenRun Mini. [Overvoltage & Overcurrent Protection] The compact and sleek design of the USB adapter provides durability and convenience. It has short-circuit protection, overvoltage protection, overcharge protection, overheat protection, overcurrent protection, and surge protection, so you can use it with peace of mind. Strong magnetic force, automatic adsorption, and not easy to fall. [Fast Charging & Excellent Materials] Premium aluminum housing, durable. Shokz USB Type-C conversion adapter, charging time is quickly completed. The connector uses "gold-plated pin connectors" that are resistant to rust and have less signal degradation. Gold-plated terminals prevent signal degradation. The high-quality premium aluminum outer skin has less wear and tear, increases the conversion rate, and speeds up charging. It has excellent durability, making it a great point for long-term use. It uses flame-retardant materials and is also safe.