【Open Design + Natural Wearing】 Hendari headphones have a completely open design that retains an open ear shape. Combined with the on-ear structure design, it reduces the pressure on the ear, the accumulation of sweat during exercise, and retains the space to prevent the ear canal from being completely sealed. Therefore, the open headset is more comfortable and hygienic than in-ear type, to reduce hearing loss and avoid ear canal infection, so that you can better pursue the comfort. 【Security Sense + 5.3 Bluetooth】 Wireless headset provides situational awareness. You can enjoy audio while listening to airport or subway announcements and conversations around you, so you don't have to take off your headset to interact with others and stay alert to your surroundings, which is very safe for you and those you care about. Featuring the latest Bluetooth 5.3 to ensure a fast and stable connection, enjoy a synchronized audio and video, low latency listening experience. 【High Quality Audio + Clear Calls】 The open Bluetooth headset is equipped with dual 16.2mm air-conducted dynamic drivers with bio-diaphragm for crisp, clear highs and powerful bass.4 high-quality microphones with beamforming technology for directional sound transmission, enjoy efficient calls. Give you 360° Hi-Fi stereo superior sound quality! 【Waterproof IPX5 + Ergonomic Design】 Wireless ear clip headphones with multi-point support can perfectly fit the natural curve of your ears, you won't feel like something is covering your ears, ensuring comfortable listening for long time. They can be worn securely during any workout and provide you with superior sound in a comfortable and natural way. It's also IPX5 sweat- and water-resistant, so you can enjoy your music while exercising without worry. 【75H Play Time + Multi-functional Buttons】 The wireless headphones with microphone have a total battery life of up to 75H. The slim charging case with LED display shows the remaining power in real time, letting you know if the case and headphones need to be recharged. The headphones have multifunctional touch buttons to control various functions.You can easily play or pause music, answer or hang up phone calls and activate the voice assistant. Hendari Open Ear Bluetooth 5.3 Headphones, Wireless Earbuds Sport Over Earphones Built-in Mic with Earhooks 75H Playtime Ear Buds LED Display Charging Case, IPX5 Waterproof for Running Fitness, White