Ergonomic ear-hook designThe ear hooks use TPE material with elastic resilience, which can maximize wearing comfort and stability. For running,gym,workout,jogging,etc.True wireless earbuds comfortable to wear,ultralight. No matter what environment youre in, you can enjoy the dynamic & immersive music and focus on your workout. . Improved Bluetooth 5.0 Wireless Headphones and HiFi SoundThe wireless earbuds is equipped with bluetooth 5.0 chip, which provides incredibly stable connection and propagation speed. Deep bass,rich alto and crystal treble let you enjoy a smoother and clearer music playback and call experience than ever before. . 50hrs Playtime and USB-CWireless sport earbuds can last for 5-6 hoursplaytime from a single charge and 50 extra hours in the compact charging case. with USB-C quick charge, the charging case only takes 1.5 hours to be fully charged. No more worries about battery life on the go.Bluetooth earphones in ear are very suitable for outdoor sports,workouts whole day. . LED Power Display and IP65 Waterproof Running bluetooth headphones charging case with led power display shows remaining power in percentage, presents its battery from 1%-100%.IP65 waterproof level well protects the running earphones from sweat and rain during intense workouts or daily use.(such as walking,hiking,jogging,etc.). . Friendly Customer ServiceBluetooth earbuds includes a rechargeable storage box,Bluetooth Headphones,Type-C charging cable, earplugs 3 pairs (initial installation M),and instruction manual.The Headphones has a 180-day warranty period after purchase,we will provide you with a refund or replacement during the warranty period if there is any quality problem with the earbuds. .