Build a better core from anywhere! No need for traditional crunches when you have the Lumina Electronic Muscle Stimulation ABS Belt. Each session lasts just 23 minutes and utilizes electronic muscle stimulation causing your muscles to contract as they would during exercise. Build a better core from anywhere! No need for traditional crunches when you have the Lumina Electronic Muscle Stimulation ABS Belt. Each session lasts just 23 minutes and utilizes electronic muscle stimulation causing your muscles to contract as they would during exercise. FEATURES FDA Cleared as a medical device or home use Each session lasts 23 minutes, equivalent to 2000 sit ups Utilizes electronic muscle stimulation (EMS) to help build a better core Muscles contract as they would during exercise thanks to the muscle stimulation providedWHAT'S INCLUDED Abs belt, 2 batteries, 3 pairs of adhesive pads, plastic holding tray, instruction manualDETAILS 7.5"H x 7.5"W x 0.5"D Product weight: 0.1 oz. Battery operated 1 lithium button battery CR3023 (included) Silicone Manufacturer's 60-day limited warranty For warranty information please click here Model no. 6008 Size: One Size. Color: Black. Gender: male. Age Group: adult.