Features 1. **Relaxation and Portability:** This smart handheld sleep monitor is designed to help those experiencing sleep deprivation and insomnia relax. It is lightweight, compact, and easy to carry, making it suitable for use in various environments, such as offices, homes, and during business trips. Its USB charging function adds further convenience. 2. **Two Frequency Modes:** Our sleep aid offers two modes to meet different needs. Low-frequency mode provides gentle relaxation for the body and mind, while high-frequency mode provides stimulation. The device is designed to be held in low-frequency mode on the left palm and in high-frequency mode on the right palm. 3. **Important Instructions and Simple Operation:** The sleep aid should automatically stop after running for 15 minutes to prevent continuous use. To restart, simply turn it off and then back on. Adjust the intensity and hand position according to personal preference for optimal comfort. 4. **Effectiveness:** Users may need some time to adapt to the device and experience relaxation. We recommend using the sleep monitor continuously for more than a week to allow the body to adjust. 5. **Calm Experience:** Use our device to relax and prepare for sleep by gently touching the palm with the metal rod. This diverts attention, relaxes the body and mind, and creates a peaceful environment conducive to sleep. Specification * Material: ABS + Stainless steel * Color: Blue * Size: 6.5 x 3.9 x 3.7 cm * Weight: 55 g Package Includes: * 1x Intelligent handheld sleep monitor