Use sound machine to create a peaceful sleep environment, help baby feel peace, fall asleep faster and wake up completely rested. With 9 soothing sounds, include White noise, Sea waves, Crickets sound, Rain sound, Forest birds sound, Streams sound and 3 lullabies. Portable and light weight, rechargable lithium battery and USB power supply are both available, good companion for travel with your baby or on a bussiness trip. Features: \u3010Various Sound Choices\u3011 The sound machine for sleeping with 9 hypnotic sounds, include White noise, Sea waves, Crickets sound, Rain sound, Forest birds sound, Streams sound and 3 lullabies \u3010Baby Sleep Soother\u3011 White noise machine analogs the sound in the utero and create a peaceful sleeping environment, sooth baby faster and more natural sleep. \u3010Auto-off Timer\u3011 The auto-off timer can be set for 15, 30, 60 minutes to save energy, with memory function, automatically play the music that last time shut down. \u3010Breathing Light\u3011 Blink regularly light guide your breath, breath in when light is on, breath out when light is off, breath control is a great way to fall asleep. \u3010Great For Travel\u3011 Small size and lightweight, rechargeable lithium battery and USB power supply, easily fits into a bag or suitcase making it the perfect travel companion. Specifications: Color: White Power by: USB (Included) Power: 1W Input: 5V\/0.5-1.0A Battery: 1200mAh Rechargable Li-ion18650 Use Time: 30-36 Hours Charge Time: 1-1.5 Hours Product Size: 80 * 80 * 33mm \/ 3.1 * 3.1 * 1.3in Product Weight: 119g \/ 4.2oz Package Size: 15 * 15 * 6cm \/ 5.9 * 5.9 * 2.4in Package Weight: 230g \/ 8.1oz Package List: 1 * Sound machine 1 * USB cable 1 * User manual