Features: Suitable for Soothing Your Baby, Your Older Kids into a Deep, Restful Sleep; Choose Your Favorite Sound for Sleep and Relaxation. With Compact Size and Light Weight (only 115g), This Portable White Noise Machine is Easily Fits into Your Handbag or Backpack. The Sleep Sound Machine Features a 15, 30 or 60-minute Sleep Timer, It Can Either Play All Night when You Want It To. The Memory Function Can Recall Your Last Settings of the Timer, Sound, and Volume when You Next Turn It On. Our Portable Baby Sound Machines with Baby Lullaby and Night Light Offers Constant Rhythm and Soft Glow. Long Press the ON / OFF Button to Start Your Sleep Therapy Sound Machine. The Sound Machine Lets Magic Happen for a Natural Sleep Aid for Tinnitus / Stress Relief, Baby Soothing, Noisy Snorer and Hotel Rooms. Specifications: Material: ABS / PC Product Size: 90 * 90 * 31mm Product Packaging: 92 * 92 * 62mm Input Voltage: DC5V = 0.8A Working Voltage: 3.7V Charging Voltage: 110-240 Battery Capacity: 1200mAh Use Power: 1.5w Use Time: 15-30 Hours Charging Time: 1.5 Hours