【Open Ear Safe】The open-ear design of the open ear headphones wireless bluetooth allows you to hear the surroundings while enjoying your favorite music, avoiding some dangerous situations from happening effectively. Unlike other traditional earphones, the earphone is no need to plug into the ear canal, it makes you free from hearing damage, ear swelling pain and other problems.【Bluetooth /MP3 Dual Modes】RR SPORTS air conduction headphones has built-in 32GB memory card, allowing you to listen to your favorite music directly from the headsets without phones, it can storage more than 5,000 songs (Support MP3/FLAC/WAV). The Bluetooth 5.0 technology offers faster and more stable connection, lower latency, and compatible with IOS, Android, Windows and more Bluetooth devices.【24-Hour Playtime & IPX5 Sweatproof】Built-in 280mAh large capacity rechargeable battery with up to 24 hours of music playback or call time and only 2.5 hours of charging time, allowing you to enjoy continuous music for a whole day. Certified with IPX5 waterproof to withstand sweat and light rain, wireless conduction headphones are ideal for indoor and outdoor sports wearing.【Stereo Sound Quality & Noise Canceling Microphone】Open ear air conduction headphones with built-in exclusive speaker, offering you a premium HiFi stereo sound, and the latest acoustics technology can greatly reduce natural sound leakage to protect your privacy. The environmental noise-canceling microphone reduces surrounding noises while phone call which brings you a crystal clear call quality.【Lightweight & Stable Fit】RR SPORTS wireless bluetooth sports headphones are made of high-quality memory titanium alloy and skin-friendly silicone, strong and durable. Only 32g weight providing you with unparalleled comfort, designed for all-day listening. A ergonomic designed frame keeps the headphones stay in place while doing intensive exercise and they are compatible with glasses and helmet. Product Description Warm Tips: The MP3 player mode only supports MP3/FLAC/WAV formats, please transfer to MP3/FLAC/WAV formats if audio files in other format.If the volume of headset is low after connecting your Android devices, please try to turn on "sync volume with phone" in Bluetooth setting.If you can't find "sync volume with phone" option, simply adjust volume on your phone and headset together.Please do not charge immediately after exercise, so as to avoid possible residual sweat in the charging port to damage the earphone circuit.Please cleaning the headset with a soft and dry cloth.The headset should be stored in a cool and dry place. The working temperature should be 0-45℃. IPX5 Sweatproof Certified with IPX5 water resistant rating, RR SPORTS air conduction headphones are fully sweat and water resistant to welcome intense workouts and intense weather. You don't have to worry about exposing them to sweat or rain. Although they are water-resistant, we don't recommend submerging in water. Strong Battery Life Equipped with 240mAh large battery, offering up to 24 hours of continuous music and calls on a single charge. You can easily enjoy them running, hiking, or cycling without worrying about run out of battery. RR SPORTS headphones are your ideal sports partner. Fast & Safe Magnetic Charging With the latest magnetic charging technology, RR SPORTS open ear air conduction headphones offer a more faster and safer charging experience, can be fully charged in 2.5 hours (A full charge is required for the first use). Faster transmission when downloading audio files. Track Page Views WithAuctiva's Counter