Description 1. Immersive Sleep Experience: Featuring professional Harman tuning technology, this under-pillow speaker delivers an immersive audio environment designed to help you relax and drift off to sleep. Its Hi-Fi grade sound quality with a wide 20-20KHz frequency response and a powerful 40mm speaker unit creates a tranquil ambiance, perfect for unwinding after a long day. 2. Smart & Seamless Connectivity: Enjoy instant pairing with Wireless Bluetooth 5.4, ensuring a stable and fast connection to your favorite devices, including HarmonyOS, iOS, and Android systems. The speaker is equipped with a convenient Type-C charging port, supporting 5V/1A fast charging for quick power-ups, keeping your serene soundtrack ready whenever you need it. 3. Premium Design & Compact Size: Crafted from high-quality ABS+PC and a comfortable fabric covering (polyester fiber), this sleek sleep speaker measures a compact 9.6 cm (3.78") in diameter and 1.2 cm (0.47") in thickness. Weighing only 48g, its lightweight and discreet profile is perfect for effortless portability and under-pillow placement without causing discomfort. 4. Extended Playtime & Soothing Sounds: power from an impressive 20 to 48 hours of super long battery life on a single charge, allowing for uninterrupted relaxation throughout the night. This sleep aid also boasts a built-in library of native natural white noise, including ocean waves, Musical instrument sounds, and forest bird calls, effectively masking external distractions and guiding you into deep, restorative sleep. 5. Undisturbed Personal Audio: Designed for peaceful, individual listening, this speaker offers a gentle volume that protects your hearing and ensures you won't disturb your bed partner. With rich stereo sound and a convenient timed shutdown feature (30, 60, or 90 minutes), you can enjoy your preferred audio for meditation or sleep without worrying about waking up to a still-playing device. Package list speaker