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 DeviceBattery Type: Lithium Ion Battery (Shipped with Built in Battery)Battery Capacity: 300mAh.Package List:1 x Sleep Aid Device1 x Lanyard1 x USB Cable1 x User Manual