Hand Held Sleeping Healthy Pulse Stimulation Anxiety Relief Neuro Sleep Nerves Insomnia Soothe Device USB Smart Sleep Instrument Relieve Insomnia & Portability: This Sleep Aid Device Uses Micro-Currents To Stimulate Cortical Neurotransmitters To Help People With Sleep Deprivation And Insomnia Fall Asleep As Soon As Possible. At The Same Time, It Has The Function Of Relieving Migraines, Relieving Anxiety And Releasing Stress.This Sleep Aids Has Light Weight,Small Size And Easy Portability,So It Can Be Used In The Office, Home And Business Trips. Usb Charging Is Very Convenient. Low Frequency Microcurrent: Low-Frequency Pulse Current Microampere Level, Does Not Hurt The Body'S Function, Still Helps Sleep After Discontinuing Use, Non-Drug, No Dependence, Through The Palm Of The Hand To Pass Current, Avoiding The Risk Of Direct Stimulation Of The Brain Current. Two Frequency Modes: Our Sleep Aids Have Two Modes. Low Frequency Mode (Sleep Mode): Low Frequency For Soothing And Relieving Anxiety Frequency, Held In The Palm Of Your Left Hand Can Accelerate To Let You Sleep Peacefully. High Frequency Mode (Excitement Mode): High Frequency For Excitement And Inspiration Frequency, Held In The Palm Of Your Right Hand Can Make You Excited And Energetic, Work And Study With More Passion.   Important Notes&Easy To Operate: Our Sleep Aid Automatically Stops After 15 Minutes Of Work,So You Don'T Have To Worry About The Device Being In Working Condition All The Time.To Make It Work Again Please Turn It Off And On Again.As Each Person'S Stimulation Strength Of The Current Is Different, Please Adjust The Intensity Of The Current And The Position Of The Hand Grip To Achieve Their Most Comfortable Intensity. Product name: Sleep Instrument Color: White,Green,Black Material: ABS Total weight: 110g Net weight: 35g Product size: 36*39*65MM Power supply voltage: DC 5V~3.7A Charging port: USB Adjust the gear position: 15 levels of intensity Battery capacity: 300 MA Control method: Key + rotary key control Working temperature: 0-40°c Cleaning method: Wipe with clean water, not waterproof Warning: Don'T Used With Implanted Medical Appliances,Such As Pacemakers,Which May Cause Equipment Failure Or Trigger A Hazard. This Sleep Aid Device Can Slowly Improve Sleep Adjustment, But, You Need To Use It Continuously For One Week.For Friends With Sleep Problems, Sleep Device This Is A Good Gift. Products include: 1*Sleep device(With lanyard) 1* USB Charging Cable 1*Instruction Manual