Electronic Acupuncture Pen Pain Relief Massage Energy Meridian Therapy Heal Features: - 2 kinds of massage head ; 9 kinds of intensity- Fusion of modern biotechnology;- Without piercing the skin to do acupuncture;- Simple operation, easy to carry;- Safe and effective, with no side effects;- Automically search the acupuncture,it will not work if not find the acupuncture and if meridian obstruction;- Transient pulse;- Accurate physical therapy;- Three types of heads for choose and possess three main functions: (1) Dome type:Superficial therapy, which is applicable for health care and facial beautification; (2) Node type: Node therapy, which is applicable for partial body pains; (3) Spheroidal type: Partial therapy, which is applicable for quickly alleviating pain. - Affordable family use Voltage: DC 1.5 V(one AA battery, not include)Output:3.7V;300mA+/-50mAPulse Frequency: 0.01-300HzPulse Width: 100 us-320 usMaximum Output Extent: 500 ohmLoad Voltage: 3.3 VDimension: 200*30 mm Package: 1 x Meridian Energy Pen1 x Spheroidal Type Head1 x Dome Type Head1 x Manual