WOOSHHThe Small, but Mighty Sound Soother. 8 high quality soothing sounds and 4 volume levels find the perfect soothing environment for your baby High quality sounds, soothing for babies and adults alike Tiny design so small, it fits in any bag or even your pocket take it everywhere you go USB rechargeable, so no need for batteries simply use the USB cable included to charge it 1 hour auto shutdown is great for daytime naps, or switch to the 10 hour all