HELPS SETTLE & STAY SLEEPTurn it on to create restful sleep environment, helping crying baby calm down and stay asleep. Choose from a selection of 16 soothing sounds, including classic white noise sounds, baby lullabies, 9 nature sounds, 2 pure music and 3 piano music. Fall asleep easier and stay asleep longer with this baby sound machine. LARGE BATTERYThe portable sound machine is built with 900mAh battery. Easily lasts all night and daytime naps on a single charge. This is definitely a lifesaver for parents worried about their baby dozing off while traveling or on the go, especially during a power outage. ULTRA PORTABLE & CORDLESSCompact and lightweight makes it the perfect travel noise machine. Only 10x10x4.6cm & 150g. It is very convenient when you're packing around so much stuff whether for a baby or for your travel. With the lanyard, you can easily hang it on a stroller, car seat or suitcase. Take it with you in a car, on a walk, in a hotel stay, on a business trip to enjoy portable freedom. The sleep noise machine is the perfect gift for yourself or your baby FLEXIBLE BUTTONS & NIGHT LIGHTOur white noise machine has soft light, 5 buttons and 1 volume knob. 3 timer, Knob stepless volume adjustment and memory function. Simple button operation, very easy to use. Soft night light makes it easy to find things in the dark and create a warm, comfortable environment that helps you fall asleep faster and easier. It is very good for mom to feed her newborn and change diapers at night.