NEWEST BLUETOOTH 5.0 TECHNOLOGY Wireless Bluetooth Earbuds adopt the most advanced Bluetooth 5.0 technology. Provides in-call stereo sound and fast, stable transmission. You just need to open the charging case and connect it on your device. They will connect to the last connected device automatically after first used. EASILY CHANGE BETWEEN SINGLE AND BINAURAL MODEWireless Bluetooth Earbuds have no master earbuds, you are no longer have to wear a fixed earphone for Single Ear Mode and easily switch between Single Ear Mode and Binaural Mode. Meet your use requirements for different occasions. HIGH FIDELITY SOUND Enjoy your music everywhere even in a loud environment. Continuous 30H Cyclic Playtime 1 hour of charging gives you 3-4 hours of continuously playing. The size of charging case are very light. Built for your convenience to carry the earbuds around and charge them anywhere. IPX5 waterproof & Ergonomical DesignWaterproof Nano-coating efficiently protects the earbuds and charging case from sweat or water, it is a good choice for strenuous workouts and all weather conditions.Use the ergonomically designed with gel-flexible silicone earcaps to ensure your headphones fit comfortably to the ears. AETTTNTION: Headset has touch function, please refer to touch menu. Bluetooth headset doesn't work after connecting for 1 minute, it will automatically enter standby mode