1. 15 kinds of soothing sleep - aiding sound effects: 15 kinds of soothing sound effects have been carefully designed, which can create a relaxing sleep atmosphere and bring a fine listening experience. 2. 30 kinds of lighting modes: It has 30 kinds of lighting modes, which can create a suitable sleep - aiding atmosphere for children, adults or infants. It can change the surrounding environment. It is a useful tool for soothing infants to sleep and is also suitable for use during night feeding. 3. 4 - level timing function: This portable noise machine has continuous playback timing settings of 15 minutes, 30 minutes, 45 minutes and 60 minutes and can automatically shut down. 4. Privacy protection and a focused environment: This sleep - aiding sound machine can also be used in meditation, yoga practice or office scenarios. Just adjust the volume to block out the surrounding conversations, which is suitable for protecting office privacy. 5. Waterproof rating: IP20 6. Voltage: 5V 7. Power supply method: USB power supply 8. Power: 1.5W 9. Dimensions: 10.6 x 10 cm 10. Material: Plastic 11. Color: White 12. Package contents: - 1 x Main unit - 1 x USB charging cable - 1 x Remote control Only the above package contents are included, and no other products are included. Note: Due to light reflection and different display settings, the color of the items in the picture may vary slightly from the actual product. The allowable error for size measurement is +/- 1 - 3 cm.