[Open Ear Design] The bone conduction earphones adopt an open ear design, which can transmit high-quality audio through the skull, thus reducing the burden on the ears. The wireless Bluetooth headset is lighter and more comfortable to wear, which can bring you a comfortable experience even if you wear it all day[New Bluetooth 5.3] The newly upgraded Bluetooth 5.3 ensures stable transmission and brings you a high-quality user experience at any time. The Bluetooth headset supports most Bluetooth pairing compatible devices, such as smartphones, laptops, Macbooks, tablets, etc. The built-in microphone provides clear calls. The maximum Bluetooth effective range is up to 10 meters (33 feet)[IPX8 Waterproof] Professional deep waterproof design ensures that the bone conduction headset can withstand all kinds of bad weather. You can wear wireless sports headphones when running, exercising, cycling, surfing, swimming. Note: You need to wipe off the surface water after use and leave it for two hours before use[32G Memory MP3] This swimming headset has a built-in 32G memory and can store about 8000 songs. Bluetooth does not work underwater, so you can switch to MP3 mode when swimming. So you can enjoy your favorite music and audiobooks underwater[10-hour long battery] The battery life is significantly upgraded, 2 hours fast full charge, one charge can be used continuously for up to 10 hours, ensure to meet your daily needs, so you can enjoy the music experience at any time