SAMVEK Open-Back Sports Headphones, Bone Conduction Headphones for Running, Fitness, and Cycling

["32G MP3 headphones - Underwater Swimming Headphones built-in 32GB storage, capable of storing up to 8,000 songs and support multiple formats like MP3, WMA, WAV, APE, FLAC formats. Note: Double-click the power button to switch between Bluetooth mode and MP3 mode.","Bluetooth 5.4 Headphones-Bone Conduction Headphones adopts Bluetooth 5.4 Technology, which ensures a stable Bluetooth connection, high-efficiency and durability, and a maximum Bluetooth connection range of 33 feet (10 meters). Compatible with iOS and Android devices, wireles headphones you can listen to music, audiobooks and make calls.","IP68 Waterproof Earphones - Waterproof Headphones For Swimming, can be used with a swimming cap, goggles and earplugs, lightweight and comfortable. IP68 Waterproof Rating is completely waterproof, sweatproof, rainproof and dustproof, which makes them ideal for swimming, snorkeling, fishing and boating. Note: Bluetooth connection is not supported underwater, please switch to MP3 Mode.","Long Battery Life - Open Earphones Bluetooth is equipped with a 200mAh large battery. After charging for 2 hours, you can enjoy up to 8 hours of playback or talk time.","Safe and Comfortable - wireless earphones sport weigh only 30 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.","Multi-function button Design - Running headphones allows you to easily switch between two modes, play, pause, previous/next song, and answer/hang up calls, bringing you a fast and simple use experience.","After-sales service - Provide 24-hour after-sales service to provide you with a satisfactory answer. Please feel free to contact us at any time."]