Music Waterproof MP3 Player for Swimming Bone Conduction Underwater Headphones for Pool, Open Water & Triathlon Training Wireless, Comfortable & Clear Sound (Dark Grey)

Listen with Confidence Underwater: A 100% waterproof bone conduction MP3 player designed for swimmers, triathletes, and open-water training. No Earbuds, No Limits: Bone conduction technology provides clear, balanced audio through your cheekbones. Ideal for pool or ocean swimming. Simple to Operate: One-button control and quick file upload from any computer. 16GB internal memory holds up to 2,5003,000 songs (MP3, MP2, MP4, FLAC, M4A, AAC). Battery Performance: Delivers up to 4 hours of continuous underwater playback per charge. Offers up to 10 days of standby time when not in active use. Provides up to 8 hours of total mixed-use for land and swim sessions. Bluetooth mode functions on land for training. Waterproof & Comfortable Fit: 5 ATM waterproof bone conduction MP3 player - safe for swimming and training in pool or open water. Sleek 35 g design fits securely and comfortably on your head without earbuds. Important Before Use: Fully charge the device before first use without unplugging it. Recharges in approximately 1.5 hours via magnetic USB cable. If unused for a long time, recharge to maintain battery performance