This is a device for sound relaxation with built-in soothing sounds and a charging station in one case. You can listen to any music on the device by connecting a speaker to your phone via Bluetooth or cable, tuning in to your favorite radio station, or inserting a flash drive or memory card. The nature sounds transmitted by the device are perceived by the brain as safe and natural, so they effectively help to distract from the hustle and bustle, calm the nervous system, and normalize sleep. You can play them in the background during the workday, as well as before and during sleep to relieve extra tension. Wireless charging complements the useful functionality and allows you to add energy not only to yourself but also to your smartphone. It doesn't eliminate deadlines, but it helps you get through them! Input: 5V, 2 Output wireless charging 15W 5.3 Speaker power 5W 87.5-108.0 MHz Twenty soothing sounds noise, wind, waves, bonfire, thunderstorm, rain, forest, etc.) Five soothing melodies Volume control External memory card support Automatic shutdown timer after 30, 60, or 90 minutes Multicolored backlight Charging function works only when powered from the mains The speaker can operate from the built-in 1200mAh lithium-ion battery Battery life up to 8 hours Power adapter and cable with connector included Comes in individual packaging. Attention! Not all smartphone models support wireless charging function.