The Acupressure Pain Relief Massage Pen By Sharper Image Uses Non-Invasive Electrical Pulses To Stimulate And Massage Away Strain And Soreness. Simply Touch The Tip To The Skin To Activate The Device. Start On A Low Setting And Gradually Increase Until You Feel The Pulsing Sensation. This Compact, Easy-To-Use Tool Is Perfect For Relieving Pain And Promoting Relaxation In Targeted Areas Of The Body.