Specifications: Machine Weight: 0.37 lbs Dimensions:2.64inch*2.64inch*2.83inch Noise:20 no-looping sounds Volume:32 levels of volume Timer:1 hour,2 hours,3 hours,4 hours,5 hours and continuous play! Box Contain: ▪ 1 x Sleep Sound Machine ▪ 1 x AC Adaptor ▪ 1 x USB Cable