Feature: 1. 18 LEVELS: Choose from 18 strength levels, ranging from gentle to deep massages, which can be adjusted to suit individual needs for optimal comfort and effectiveness. 2. INTELLIGENT SLEEP ASSISTANT: Equipped with an automated sleep state monitoring feature, it adjusts output strength based on real time feedback to help you achieve your ideal sleep state. 3. COMPACT AND PORTABLE: The compact size of the device ensures convenience in portability, easily fitting into your bag or pocket for effective sleep aid whenever and wherever needed. 4. MULTI FUNCTIONAL: Enhance your sleep quality, effortlessly fall asleep and maintain a better sleep with this advanced, technologically driven seep aid device. 5. LIGHTWEIGHT AND USER FRIENDLY: With a handheld design, this sleep aid device is both easily portable and simple to use. Enjoy a comfortable sleep aid experience anywhere, anytime. Specification: Item Type: Sleep Aid Device Material: Plastic Battery Type: Lithium Battery 300mAh (included) Size: Approx. 40 x 37 x 67mm / 1.57 x 1.46 x 2.64in. Package List: 1 x Sleep Aid Device 1 x USB Cable 1 x Strap 1 x User Manual