Features1The handheld sleeping aid is specially designed to improve your sleep quality. 2Not only can you improve the quality of your sleep, but also relieve the fatigue and soreness of your palms. 3Long battery life, the sleeping aid can be used for a long time without charging. 4Made of high quality ABS material, stable and durable, can be used for a long time. 5The handheld sleep aid adopts sling design, which can be easily stored and carried around.SpecificationCondition:Brand New Item Type: Handheld Sleeping AidMaterial: ABSThe Efficacy of the Three Modes:Relaxation Mode: Improve Sleep Speed and Sleep Quality.Active Mode: Increase the Enthusiasm for Study and Work, Invigorate the Spirit when You Are Sleepy.Hand Care Mode: Eliminate Palm Fatigue and Soreness, Relax the Mood, and Remove Fatigue.Power Supply Mode: 1 AAA Battery (No Battery Included)Package List1 x Handheld Sleeping Aid 1 x Instruction Book 1 x Sling