1. Micro-current pulse stimulation combined with soothing music helps support natural sleep, promoting relaxation and easier sleep onset. 2. Non-invasive sleep support technology with no chemical components, designed for safe and comfortable use. 3. 9 sleep programs with 9 adjustable intensity levels to help manage daily stress and support restful sleep. 4. Ideal for individuals experiencing stress, occasional anxiety, difficulty falling or staying asleep, and those adjusting to new time zones. 5. Features a Type-C charging port, 0.5-hour charging time, and up to 6 hours of usage per charge. Built-in battery capacity: 150mAh Rated voltage: 3.7V Rated power: 0.1W Input voltage: 5V/1A Rated current: 25mA Charging time: 0.5h Use time: 6h Net weight: 53g Color: Green Material: ABS Size: 8.5 x 4.5 x 3 cm Package Contents: 1 x Sleep device 1 x Type-C cable Note: Light reflection and differences in display screens may cause slight variations in color between the product image and the actual item. Measurement error is +/- 1-3 cm.