Advanced Bluetooth 5.1 Technology: Our true Wireless Earbuds use the advanced Bluetooth 5.1 chipset. Use wireless headphones you will getting 3x faster transmission speed and more stable connectivity without signal loss or music dropouts. With a range of up to 15m, whether you are at home, in the office, or on the road, you don't have to worry about disconnection. Thetruly bluetooth headphones make you jump out of limits rather than pulled back by wires. Enhanced Deep Bass and CVC 8.0 Noise Reduction: Bluetooth earphones with 14.2mm vibrating diaphragm and HD rendering technology produce truly natural, authentic sound and powerful bass performance sound no matter in calls or in music time. The noise cancelling earbuds built-in with MEMS microphones and CVC 8.0 noise cancellation tech that effectively separates your voice from the ambient sound, makes the communication loud and clear, perfect for video calls or online meetings work. Lightweight Earhooks for Sports, Comfort-Fit: The running headphones included soft ears hooks are specially designed, which can fully fit your ears contours and maximally guarantee a comfortable wearing experience without falling out. Equipped with 3 pairs of different sizes of spare ear caps for options. Even do strenuous exercise, the sports headphones will not fall off. And this wireless headphones running make an ideal companion while workout/running/yoga/travel/business etc. Dual LED Power Display and 40Hrs Playtime: Designed with dual digital LED power display, the ear buds wireless earbuds allows you to grasp remaining power of charging case and charging status of earbuds in real-time. The bluetooth earbuds offer 10 hours of playtime on a single charge and up to 40 hours playback with the portable charging case. Only 1 hrs of charging time is required for both the in ear headphones to get a full charge. Never worry about battery life even on long trips. IP7 Waterproof and One Button Control: The bluetooth headphones in ear use nano-coating to professionally protect the interior from the influence of water and sweat and prolong the service life. Each wireless earbuds bluetooth has function of answer/reject phone, volume adjustment, switch music,voice assisatant. Free your hands completely when youre busy doing exercise, bicycling, driving or running. Its absolutely ideal and prefect for gym, sport lovers and all kind of outdoor activities.