Feature:1. CHARACTERISTICS: The automatic detection of acupuncture points is a new fusion of traditional Chinese medicine and new science and technology, demonstrating the true effectiveness of meridian acupuncture.2. ADJUSTABLE: The frequency and strength of the electric acupuncture pen stylus massager are adjustable, so you can adjust the right gear according to your tolerance to meet different needs.3. EASY TO OPERATE: The electric acupuncture pen is simple to use, easy to operate, suitable for family use, a good helper for your health.4. PORTABLE: The electronic acupuncture pen is light and easy to carry in your pocket, bag or pouch, whether you are at home, in the office or travelling, you can use it conveniently.5. SAFE: This massage pen is made of safe material, safe and effective, no side effects, can be used for a long time.Specification:Item Type: Meridians Massage PenBuilt in Battery Specifications: Lithium battery 603450 battery model 500mAh (shipped with built in battery)Scope of Application: Wrist, ankle, knee, neck, waist and other parts. .Package List:1 x Meridian Pen1 x Replacement Physical Therapy Head1 x Replacement Mushroom Head1 x Instruction Manual1 x USB Cable1 x Conductive StickNote:The indicator light turns green when the product is charging and goes out when it is fully charged.