GREYOLK Bone Conduction Headphones IP68 Waterproof Swimming Headphones Open Ear Headphones with MP3 Mode 32GB Memory Up to 8 Hours Playtime Bluetooth 5.4 Ear Buds Secure Fit for Running and Fitness

["Bluetooth + MP3 Modes: The underwater headphones for swimming with Bluetooth 5.4 ensure an ultra-low transmission latency significantly enhances the music experience. Users can connect two or more devices. This allows for seamless switching between devices. OR listen to phone-free with internal MP3 storage for up to 4,000 songs. Easy to click twice to switch bluetooth and MP3 mode.","IP68 Fearless for All-Weather Use: The waterproof bone conduction headphones has certified IP68 waterproof rating and can be submerged in water up to two meters deep for one hour. Switch to MP3 mode, listening to favorite songs would make swimming and other underwater activities much more interesting. These open ear headphones feature fully sealed coating, no worry about underwater use.（Note: Please change the MP3 Mode when in water, bluetooth Mode cannot connect underwater.）","8 Hours of Music & Download: The waterproof headphones delivers up to 8 hours (Bluetooth Mode) of continuous listening life. With fast magnetic charging capability, you can achieve a full charge in just 2 hours. Connect the magnetic charging cable to the computer and headphones, you can read the USB built-in memory card, and copy the songs from the computer to the USB, then finish download the songs.","Comfortable Open-Ear Design - The open-ear bone conduction design lets you enjoy music while staying fully aware of your surroundings. The soft, skin-friendly silicone pads on the earcups provide a comfortable and snug fit. The open design promotes air circulation, ensuring all-day comfort even during extended wear. Equipped with an adjustable headband, it securely fits different head shapes for a stable wearing experience","Safe and Comfortable - wireless earphones weigh only 32 grams, with open-ear design and comfortable to wear. Pay attention to your surroundings while enjoying the music, perfect for indoor and outdoor activities such as running, cycling, exercising, etc., ensuring you are safe wherever you go."]