26 Soothing Sounds - Including 8 white noise sounds, 8 wind sounds, and 10 nature sounds (water droplets, wave, wind sound from Bavarian, forest, fetal heartbeat, train, bonfire, spring rain, light-year, summer night), which are engineered to mimic the natural environment, helps you block out distraction and creates a perfect environment for sleep, relaxation.Compact & Portable - (4.5"L x 3.5"W x 3.8"H , Weight: 16.7OZ) Small size and light weight, easily fits into your handbag, backpack or suitcase, perfect for home, office, vacations and business trips. (with a convenient USB cable)Timer and Memory Function - The noise machine for sleeping can be played continuously or 30, 60 min auto-off timer options available, which allows you to create a peaceful environment for a nice noon break or all night long deep sleep. This white noise machine will record the last sound, volume, and scheduled shutdowm time when you turn it on.Best Gift - The sound machine sleep sounds help you fall asleep easier, sleep better, wake-up refreshed, is a perfect gift for baby and insomniac.