- Bluetooth sleep mask with built-in headphones, ideal for blocking light and enjoying wireless music - 3-in-1 multifunctional design: sleep mask, headphones, and sports headband in one product - High-quality elastic lining that comfortably fits most users - 150mAh rechargeable lithium battery: up to 10 hours of music and 72 hours standby - Soft, lightweight, breathable, and washable polyester fabric for extra comfort - Allows hands-free calls and easily accessible volume control - Perfect for travel, flights, naps, meditation, and relaxation anywhere - Easy to adjust and use: just put on the mask, adjust the straps, and enjoy - Recommended as a gift for those looking to improve sleep quality and rest