DUAL CHANNEL PULSE MASSAGER - Small, safe pulse travels through two sets of electrode pads placed on your skin simultaneously (4 pads at a time), 15-20 minutes per session, not only can you get the benefits of pain relief, but also you can stimulate your muscles and improve your fitness. 24 INDEPENDENT MASSAGE MODES - Dual channels can be set with different modes and intensities. You may choose the Cupping mode in channel A with an intensity level of 2 on your shoulder. While in channel B, the Tapping mode is being run with the intensity set to level 8 on your lower back; 24 independent options help diminish the sensation of physical pain like sciatica, arthritic or inflamed discs/joints, stiff shoulders, lower back pain. ADJUSTABLE INTENSITY AND TIMER - 20 level of intensity allows you to fine-tune the pulse width and pulse rate which optimize sensitive control to relax your particular pain; A pre-programmed timer can set a predetermined duration from 10 up to 60 mins according to your demand REUSABLE PADS & TEN HOURS USE - Premium hydrogels utilize multi-layer technology which gives good conduction, no need to use any gel together, reusable for 15-20 times when used properly; Up to 10 hours of continuous use per full charge with USB cable. COMPACT, PORTABILITY, BACKLIT SCREEN - Pocket-sized and dual-output design enable you to massage more body parts on-the-go or in specific places; The digital LCD backlit feature makes the screen clear and easy to read; If you have any technical problems, please directly contact us for further assistance.Key Features You Can Count On FDA, CE, ROHS approved Independent channel A/B with 24 kinds of effective physiotherapy 20 level of the frequency and strength of the pulses 8 self adhesive, reusable electrode pads, no need any gels (6 big and 2 small ones) Adjustable timer setting from 10 to 60mins (the default timer is 20mins) Auto shut down at the end of the preset duration Full charge in one hour for up to 10 hours of continuous use Low battery indicator as a reminder of recharging in time Portable pocket-sized design conveniently used on the go or holidays 18 months replacement warranty Please Note What You Cannot Do 1.Do not use for pregnant women or hypertension patients. 2.Do not combine a big pad with a small one on the same electric wire. 3.Do not place electrode pads on broken or damaged skin. 4. At least two electrode pads need to be attached to the skin at any given time for the intensity function to be operable.