1. Wireless bluetooth 5.0– Upgraded bluetooth 5.0 and Dual high sensitivity antenna deliver steady connection without call and music dropouts. Never worry about walking away or losing your connection again. Simply take it out of case and it enter pairing mode without messy tricks. Reconnect to your cell phone automatically after initial pairing. 2. HiFi Stereo– The BW-FYE3 True Wireless Stereo Headphones built-in the 6mm HiFi stereo horns which delivers you high quality HiFi stereo bass sound you never experience before. 3. Shaping Design– Mini in-ear design with two earwings in your ear canals snugly and multiple sizes of eartips to block outer surrounding noise, ensure your headphones stay comfortably firm in place and improve the sports and workout experience. 4. 2600mAh Ultra-large-capacity– The charging case can charge the earbuds for about 13 times. The earbuds can play for 2-3 hours after charging them once. In addition to charging the earbuds, the charging case can act as a power bank for charging mobile phones and other USB devices. 5. Tou&ch Control– New tou&ch design instead of button to operate, Relieve the physical pressure bring about discomfort. Powerful and easy to operate. rejected calls, play / pause. 6. Universal Compatibility– Compatible with iOS, Android, For Xiaomi, For Huawei, bluetooth-enabled Cellphones tablets;Perfect for Sports, Workout, Running,Jogging, Gym Exercise, Audiobooks, Watching TV,or Sleep.