Ergonomic ear-hook designSilicone Earhook Design for Sports with soft and durable flexible material for secure and comfortable wear for running,gym,workout,jogging,etc.True wireless earbuds comfortable to wear,ultralight and has 3 different eartips sizes.Do exercise with sport headphones,enjoy your fitness journey.Improved Bluetooth 5.0 sports headsetNo tangled wires bother you,so you will enjoy the convenience of these truly wireless earbuds.bluetooth headphones built-in 5.0 bluetooth high-tech chip ensures an incredibly more stable,faster,lower latency and lower power connection during data transmission.6D Stereo HiFi Sound Stereo wireless earphones with noise cancellation technology effectively blocks out background noise and accurately picks up your voice,so you can enjoy your music moment even in a loud environment.Deep bass,rich alto and crystal treble let you enjoy a smoother and clearer music playback and call experience than ever before.50 hours play timewireless sport earphones can last for 5 hoursplaytime from a single charge and 50 extra hours in the compact charging case.no more worries about battery life on the go.bluetooth earphones in ear are very suitable for outdoor sports,workouts whole day.(Note: Please fully charge it for the first use.)LED Power Display and IP65 Waterproof sports bluetooth headphones charging case with led power display shows remaining power in percentage.charging case presents its battery from 1%-100%.suitable for running even in rainy days,and suitable for sweating in the gym or various outdoor sports(such as walking,hiking,jogging,etc.).