1 Quell 2.0 is 50% smaller than original Quell device
2 Gozani SN. Fixed-site high-frequency transcutaneous electrical nerve stimulation for treatment of chronic low back and lower extremity pain. J of Pain Research 2016;(9):469-479
3 Unpaid testimonial. 4 out 5 people reported improvement in chronic pain based on 60 days of product use. Results may vary 11
