About this Item: Bluetooth 5.3 & 64GB MP3 Storage - SANAG B60S swimming headphones are equipped with 64GB MP3 storage space, which can store tens of thousands of songs. You can play all your favorite music while swimming or showering without a mobile phone. CVC Noise Reduction: SANAG B60S is equipped with an upgraded CVC algorithm, which can filter the surrounding noise in real time, and with the built-in microphone, it can achieve a new high-definition call experience Long Battery Life: This sports headphone is equipped with a low-power large battery, using magnetic flash charging technology, and can last for 10 hours on a single charge. Directional Sound Transmission technology: The Bluetooth headphone adopts the full-cavity closure 3.0 technology independently developed by the SSG Acoustic Laboratory, which alleviates the sound leakage problem caused by the resonance of the ear shell caused by the vibration of the vibrator. 360° Stereo: The wireless Bluetooth headset adopts high-frequency vibrator enhancement technology, containing 16MM high-density gravity large vibrator, which greatly improves the bone conduction sound quality, allowing you to experience the 360° dynamic sound waves of the concert. IPX8 Waterproof : The Bluetooth sports earphones are a one-piece, hole-free body that is fully sealed, with an IPX8 professional waterproof rating, and can withstand full immersion up to 2 meters deep. They are stress-free for daily rain and sweat protection, and are great for swimming. Lightweight, Comfortable & Stable: This bone conduction earphone adopts a golden triangular ear wing embracing design that fits the human auricle ergonomics, fits different head shapes, fits tightly, is comfortable, and can't be thrown off even if you are a sports fanatic.