1.Advanced Bluetooth 5.0: Bluetooth 5.0 technology provides a stable wireless connection to your smartphones and other Bluetooth devices. There are no wires being tangled and earbuds can fast pair 2.Wireless Charge: When you put earbuds in charging case, it will be charged automatically, which is convenient for your next use. 3.Intelligent Call: Both earbuds could call and listen to music, and touch the left earbud could answer the call. 4. True Wireless Earphones: Built-in TWS (True Wireless Stereo) technology, HD and sensitive microphone, it will enable a clear calling experience and high-quality music sound. Superb stereo sound, and bass will provide for an enjoyable music and movie listening experience. 5. Portable Charging: Hands-free earphones with a built-in battery will provide up to 4 hours playing time. A mini and portable charging case will support recharging of your earphones up to 5 times. Meanwhile,the charge box could show the power. 6. Stable and Comfortable: Ergonomic design for Sport, Workout, Running, Jogging, Hiking, Biking, Gym etc.