Top-Quality Audio: Thanks to the Bluetooth 5.0 technology and the world’s most professional chipset will allow you to enjoy the perfect 3D stereo quality. Impressive Charging Case: The stylish and small-sized charging case is able to charge the earbuds 15-18 times. After the earbuds are used for 3-4 hours, you can put them into this case for charging at any time. The charging case also has a super large capacity which doubles as a mobile power supply to charge your cellphone. Super Easy to Use: Thanks to the real wireless design, the earbuds will be automatically turned on and paired with your device as soon as you take them out of the charging case. Comfortable to wear: The earbuds' ergonomic design allows them to fit in your ears safely and comfortably. In addition, we provide 5 pairs of different sized ear caps so you can find the optimal fit.