Sleep Improvement Pillow Speaker Bone Conduction Pocket Speaker White Noise & Various Natural Sounds Sleep Music Player Reference Price: ¥4,480 This is an upgraded pillow speaker that allows you to sleep comfortably without pressure on your ears. With bone conduction technology and built-in white noise, it frees your ears and provides a private music experience. Ideal for sleep and relaxation time. [Features] Bone conduction technology, built-in white noise [Other] No pressure on ears, private music experience Thank you. Free shipping, anonymous delivery for a safe shopping experience.