Tens Unit Rechargeable Muscle Stimulator Massager Pain Relief Dual Channel Features: Built-in 24 different pre-programmed stimulation modes for multipurpose massage experience to effectively relieve pain and fatigue, promote blood circulation and metabolism or stimulate muscle for enhanced muscle performance of different body parts like head, shoulder, waist, back, buttocks, legs and etc. Large LCD display with white backlight enables clear and direct working status indication of remain battery power, mode, intensity and time both during the day or night, even in the dim environment. Easy button control design, you can effortlessly switch modes, set time and adjust intensity on the operation panel and power on/off by sliding the top button according to your operation preference. Support dual independent outputs(A, B Channel) to allow customization applications on different body areas with different massage intensities simultaneously, practical to share with your friends or family members together. Well organized and stored in a package box, ideal gift to show the care for your loved ones such as your family or friends, really a practical personal fitness keeper device in the busy modern life, effortless to put in your bag or backpack, space saving with carrying breeze. Specifications: Material: ABS Shell Color: Black(As Picture Shown) Screen Type: 2.0” LCD Backlight Display Output Pulse Channel: 2 Channels Intensity Stage: 20 Levels Timer: 10-60Min Power Supply: USB Charging(Built-in Rechargeable Battery) Main Unit Size: Approx. 9.5*5.5*1cm Package Included: 1* Electric Therapy Massager(Main Unit) 2* Large Electrode Pads 2* Middle Electrode Pads 2* Small Electrode Pads 2* Electrode Wires 1* USB Cable 1* Pad Holder Board 1* User Manual 1* Acupuncture Points Chart