[Designed for Sports]: Flexible, secure-fitting silicone ear hooks and an ergonomic design ensure the headphones stay comfortable and secure during hiking, running and other outdoor activities. Three different sizes of silicone eartips are included, designed to fit perfectly without squeezing your ear canal and to be worn for long periods of time without fatigue or pain, giving you comfort from the inside out. IPX7 rated waterproof to withstand common splashes and rain. [Ultra-lightweight Sports Bluetooth Earbuds]: Q35 wireless earphones weighs only 6 grams, and the whole product (plus the charging case) weighs only 50 grams. Compared with other sports headphones with ear hooks to be more lightweight, easy to carry around. [Dual LED Digital Display and Fast Charging]: Q35 wireless earbuds show the remaining charge level of the charging case by the number on the charging case screen, and the charging status of each earbud by the LED light bar. The charging case has