Sound Machine for Sleep: 16 Adjustable Volume & Timer, 25 Soothing Sounds, 7 Soft Wake-Up Sounds,Memory Function

High-Quality Audio Built-in High-Performance Full-Range Speakers Clear treble, rich midrange, deep bass Stable and Fast Bluetooth Connection Features Bluetooth 5.3 for faster transmission and lower latency Connection range extends over 10 meters Automatic reconnection for greater convenience Long-lasting battery life Built-in high-capacity battery 6–20 hours of playback on a single charge Hands-Free Calling Built-in HD Noise-Canceling Microphone One-Touch Answer/End Call Waterproof and Protective Design IPX5 / IPX7 Water Resistance Rating Durable, drop-resistant body, ideal for outdoor use