[Innovative Open Earbud Design] DUVOSS 5.3 Bluetooth Headset uses ergonomic design with flexible silicone cushions to provide you with a more comfortable experience. With non-invasive design and soft, flexible ear hooks, you will no longer have pain in your ears due to long time wearing. [Good Choice For Phone Calls And Music Plays] This open headset experience faster and more stable transmission speed with the help of Bluetooth 5.3 technology. DT3.0 directional sound transmission technology for smooth calls.16.2mm high sensitive large diaphragm speakers, Liso2.0 bass enhancement technology, HIFI sound quality, creating 360° stereo sound quality, allowing you to enjoy great music. [Long Lasting Battery Life] 100mAh bluetooth headset battery plus 500mAh charging case battery charging compartment, you don't have to worry about the headset's usage time, open headset up to 50 hours of standby time and 10 hours of continuous playback time on a single charge. Ch