VEVOR Sound Machine, 21 Soothing Sleep Sounds, 3-in-1 Portable and Hangable White Noise Sound Machine with Auto-Off Timer

Item Model Number: HFD-W13 Number of Soothing Sounds: 21 Lithium Battery: Single 18650 Cell, 3.7V / 1800mAh Net Weight: 0.51 lbs / 0.23 kg Product Dimensions: 3.78 x 3.78 x 1.57 in / 96 x 96 x 40 mm