• Integrated Bluetooth 5.4 headphones in a multifunctional headband, perfect for sleeping, exercising, traveling, and relaxing. • 6-in-1 design: sports headphones, sports headband, decorative headband, ear warmer, sleep mask, and band to keep hair in place. • Rechargeable lithium battery provides up to 15 hours of continuous playback after a full 2-hour charge. • High-performance polyester fabric, breathable and quick-drying, with thousands of laser ventilation holes to improve air circulation. • Enhanced elastic design comfortably fits most people, easy to wash after removing the Bluetooth module. • Ultra-thin integrated microphone for making and receiving phone calls without losing communication. • Soft, durable, and hypoallergenic materials: skin-friendly polyamide and polyurethane. • Noise cancellation for optimal rest and versatile use in sports or relaxation activities. • The Bluetooth module must be removed before washing; hand wash recommended with water below 40°C and air dry. • Only allows one Bluetooth connection at a time; the device automatically turns off after 5 minutes of inactivity.