SONR Music Waterproof MP3 Player for Swimming, Bone Conduction Underwater Headphones for Pool, Open Water & Triathlon Training, Wireless, Clear Sound, Open-Ear Player with Bluetooth (Sunny)

Additional Details from the Manufacturer

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More features

• 【Listen Underwater with Confidence】 100% waterproof bone conduction MP3 player designed for swimmers, triathletes, and open-water training.
• 【No Earbuds, No Limits】Bone conduction technology delivers clear, balanced sound through your cheekbones. Perfect for pool or ocean swimming.
• 【Easy to Use】One-button control and fast file upload from any computer. 16GB internal memory stores up to 2,500–3,000 songs (MP3, MP2, MP4, FLAC, M4A, AAC).
• 【Long Battery Life】Up to 4 hours of continuous underwater playback per charge. Up to 10 days of standby time when not in active use. Up to 8 hours of total mixed-use battery for land + swim sessions. Bluetooth mode works 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 about 1.5 hours via magnetic USB cable. If unused for a long time, recharge to maintain battery performance.