Bone conduction technology delivers sound directly into the inner ear, providing a more natural and comfortable listening experience compared to traditional in-ear or air conduction headphones Support Multi-point Pairing & Bluetooth 5.2 technology ensures a stable and fast wireless connection with a range of up to 33 feet USB-C quick charging allows for 8 hours of use with every full charge, and 480 hours of standby time. We recommend adjusting the volume to 80% for optimal battery life Dual CVC8.0 and ENC noise-canceling microphones with maximum 220-degree adjustable boom mic pick up your voice with accuracy and block out surrounding noise Open-ear design keeps you alert to your surroundings, making it perfect for outdoor activities IP55 waterproof rated: The waterproof lever of the headphones with mic is IP55 waterproof rated which is perfect for working,running,fitness,hiking,riding and other outdoor activities All day comfort: This ultra-light bluetooth headphones is made of soft silicone material which ensures long-lasting comfort without ear fatigue. The open ear design let you keep awareness of the surroundings while enjoying music Lightweight: The wireless earphones with lightweight body and flexible titanium headband reduces pressure on the ears, which can bring us a very comfortable wearing experience Package Content and After-sales Support：1x Headphone, 1x Earbuds, User Manual, Sponge Earplug, Charging Cables, Carrying Bag. If you have any questions, please feel free to contact us. YouthWhisper Bone Conduction Headphones - Bluetooth 5.2 Open Ear Headphone with Noise-Canceling Boom Microphones - Wireless Headset with Dual Mic Bone Conducting Earphones for Office, Conference