【Industry-Leading Bluetooth 5.3 & Auto-Connect】 Equipped with the latest Bluetooth 5.3, significantly improving power efficiency and connection stability. Minimizes audio-visual lag for a comfortable viewing and gaming experience. After the initial connection, it automatically connects simply by opening the case. Provides stable connectivity even during commutes, school, or working from home. 【Excellent Fit & Convenient Portability】 Designed based on ear shape data from thousands of people for an outstanding fit. Includes three sizes of ear tips for adjustment. Compact and easy to carry, with touch controls for play/pause, calls, volume adjustment, and more. 【IPX7 Waterproof & Reliable Quality】 IPX7 waterproof specification, resistant to sweat and rain, making it ideal for running, the gym, and outdoor activities. High-quality sound and multi-functional, making it a great gift.