• 25 non-repetitive sleep sounds: includes white noise, fans, stream, ocean waves, birds, bonfires, train, piano, meditation, among others. Ideal for babies, children, and adults. • 5 timers and 32 volume levels: option for continuous playback or timers of 60, 120, 180, and 240 minutes. Capable of masking disruptive environmental noises. • Compact design and memory function: dimensions of 9.9 x 9.9 x 5.8 cm, easy to carry in a bag or suitcase. Perfect for home, office, or travel. The memory function automatically restores the previous volume, sound, and time settings. • AC or USB powered: complies with ETL, FCC, CE, and RoHS regulations, ensuring safety and quality. • Lightweight: only 0.18 kg, easy to carry and handle.