Threestage timed shutdown Automatic shutdown options at 30, 60, or 120 minutes. Easy to set and helps you sleep peacefully without worrying about power. Battery and charging 400 mAh rechargeable lithium polymer battery Up to 8 hours of use on a single charge Fast charging for quick reuse and reliable battery life Immersive audio 3D surround sound when placed under the pillow Realistic 3D stereo sound quality for an extraordinary listening experience Bluetooth connectivity Bluetooth 5.0 mode with a quality Bluetooth chip Faster, more stable connection with low latency and low power consumption Clear sound throughout use Use scenarios Bedtime listening: Ideal for music, sleep stories, or guided meditation. Set the timer to automatically shut down after 30/60/120 minutes. Relaxation and sleep aid: Use with ambient sounds or white noise to ease into sleep with immersive underpillow audio. Travel or quiet spaces: Pair with a Bluetooth device to enjoy immersive sound in hotel rooms, shared spaces, or during commutes.