TECHNICAL SPECIFICATIONS - Marine Grade IPX8 Waterproof, 8GB Flash, MP3/WMA, 10hr Battery, USB 2.0, 200mAh Lithium, 20Hz-20kHz, S/N >70dB, Bendable, Adjustable, Universal Fit, 9mm Speaker, 5mW Power WIRELESS FREEDOM FOR SPORTS - Enjoy a wire-free, hands-free experience with this wearable MP3 player, perfect for any active lifestyle. No distractions during workouts, swimming, or outdoor activities. LONG-LASTING COMFORT DESIGN - Ergonomically designed for comfort, the secure behind-the-ear fit ensures the headphones stay in place, even during intense physical activities, for hours of uninterrupted use. EASY FILE MANAGEMENT - Effortlessly manage your music files with simple drag-and-drop functionality via USB, compatible with Mac and Windows. Enjoy multi-format playback with MP3 and WMA support. DURABLE AND VERSATILE - Built to withstand tough training, this waterproof and dustproof player is perfect for athletes in all conditions, whether at the gym, on land, or underwater up to two meters deep.