Feature: 1. Microcurrent Technology: The sleep aid machine utilizes advanced microcurrent technology to effectively improve your sleep quality. 2. Handheld Design: The handheld sleep aid machine allows for an easy and convenient use, providing you a comfortable sleep anytime, anywhere. 3. Multiple Pulse Modes: The sleep aid device offers a variety of pulse modes to choose from, giving you the flexibility to personalize and adjust the sleep aid effects to your preference. 4. Calming and Relaxation Effect: The compact sleep aid device delivers calming effects, providing relief from insomnia and helping induce sleep. 5. Compact and Portable: With compact and lightweight design, this microcurrent sleep aid device serves as your ideal companion for a deep and rejuvenating sleep wherever you go. Specification: Item Type: Sleep Aid Device Battery Type: Lithium Ion Battery (Shipped with Built in Battery) Battery Capacity: 300mAh . Package List: 1 x Sleep Aid Device 1 x Lanyard 1 x USB Cable 1 x User Manual