Beurer EM34 TENS Device Knee/Elbow 2-in-1

This Beurer EM34 is a 2-in-1 universal sleeve TENS device for knees and elbows. It features 1 channel for TENS stimulation, 2 water contact electrodes, and 25 levels of adjustable intensity. It's powered by 3 x 1.5V AAA batteries.