About this item Dual-Use Design: Sleep/Sports Headphones - Ideal for side sleepers and athletes alike. By day, it's a comfortable, sweat-wicking headband for workouts. By night, it transforms into an effective sleep headphone and mild noise-reducing sleep aid to block distractions and promote restful sleep. Premium Bamboo Cotton for Superior Comfort - Made from ultra-soft and breathable bamboo cotton. This natural fabric is 3x more absorbent than cotton, quickly wicking away moisture to keep you dry. Its natural bamboo material prevents odor or stuffiness, ensuring lasting freshness during intense workouts or overnight use. Hi-Fi Stereo Sound - Features a built-in advanced Bluetooth module with seamless connectivity. Enjoy crisp, immersive audio from the high-quality speakers and take calls clearly with the integrated noise-reducing microphone, whether you're listening to music, podcasts, or on a call. Extended Playtime Battery - Get up to 15 hours of continuous music playback on just