Get quick, temporary relief from lower back aches with a little help from the BMR ReVive Back Pain Relief Belt with Lumbar Support. Put relief right where you need it with the same Transcutaneous Electrical Nerve Stimulation (TENS) technology used in physical therapists' and chiropractors' offices. This adjustable belt uses mild electrical stimulation to give you a break from the ache! BMR ReVive Back Pain Relief Belt with Lumbar Support Includes: ReVive Back Pain Relief Belt Controller 9V battery 4 Adhesive GelPads Travel Pouch Instruction manual Quick Start Guide Product Features: Professional-type technology for use at home Immediate, but temporary pain relief FDA cleared to "provide temporary relief of pain associated with sore or aching muscles in the lower back due to strain from exercise or normal activities" Simple and easy-to-use Adjusts to fit waist sizes 30" to 56" Stretch elastic and hook and loop closures for a snug, comfortable fit TENS Controller - regulates the intensity of electrical nerve stimulation. Clips directly to the side of belt for easy access 3-built-in programs offer intensity levels ranging from 1 to 99 Hand wash only; lukewarm water Belt measures approx. 46-1/2"L x 9"W x 1"H Made of nylon, polyurethane, elastane & polyester Made in China & Ireland Comes with a 2-year manufacturer's limited warranty Notes: To ensure maximum performance from your TENS belt, gel pads should be replaced after 20 to 30 sessions. Replacement gel pads sold separately. Please consult your physician before beginning this or any exercise or diet. WARNINGS: This product should not be used while sleeping. Persons with pacemakers or other implants, who have cancer or cognitive dysfunction, who have epilepsy, who have had recent surgery or injury, are under medical care or who are pregnant, should not use this product unless they have cleared it with their doctor first. The long-term effects of chronic electrical stimulation are unknown. Do not use the unit in close proximity (1 yard) to shortwave or microwave therapy equipment or if you are connected to high-frequency surgical equipment (e.g. diathermy) because of the risk of device malfunction due to electronic interference.