Super Lightweight and Comfortable Fit: With a Ultra-light weight of 4g and ergonomic design, This Wireless Earbuds can fit your ears perfectly. You never need to worry about them falling off easily during exercise, no pain even if you use it for a long time. Offer you the most secured and comfortable wearing experience.Fast Automatic Pairing TechnologyYou don’t need any skills to use this Bluetooth 5.0 Wireless Headphones. Just take the left and right earbuds out of the charging case and they will pair with each other automatically, you can use both Bluetooth earbuds at the same time, or use only one, and once connected, they can be automatically recognized next time. They will automatically turn off and charge when put back into the charging case.Classic Exquisite :The rectangle flip-open charging case is very small and lightweight for portable use. When you’re traveling, working or exercising, you can easily put it into your pocket or backpack to store and charge the headphones anytime, anywhere.IPX5 Sweatproof :A perfect choice for running, jogging, cycling, working out in the gym and you don't have to worry about Wireless Earbuds mixing with your hair. IPX5 protects your headphones from sweat, water, rain, etc.Widely Compatible :Perfectly compatible with Windows, IOS, Android, and all devices above Bluetooth 5.0.Why does the bluetooth headphones drop the connection?1. Out of bluetooth range (please do not exceed 32 feet).2. The running headphones is low on power.3. There is an obstacle between the wireless earbuds and the Bluetooth setting.Smart Touch :This wireless headphones is equipped with a smart touchpad, with a fingertip touch to complete