A. Product size: 93 * 80 * 28 mm B. [Parameters] Input voltage: DC5V = 0.5A, power: 1W, Battery capacity: 300mAh, use time: 23 hours, charging time: 1 hour C. A total of 10 songs, including sleep - inducing music: white noise, lullaby 1, crickets chirping, waves, clocks, birds chirping, heartbeat, lullaby 2, running water, lullaby 3 D. 10 sleep sounds without loop - white noise, ocean waves, birds, heartbeat, clocks, crickets, running water and 3 lullabies. E. This special gift with great love will give you peace of mind, suitable for babies, children and adults. F. 3 timers - you can set it for continuous playback or set an automatic 15, 30, 60 minute stop timer. G. Compact design and memory function - with 9.3 x 8 x 2.8 cm, it can be easily put in your handbag or suitcase, perfect for home, office or travel. H. Not only for sleep -- the white noise speaker can drown out noise and relax the body and mind. I. Suitable for use at home, office, dormitory, baby's room or anywhere you want to rest.