Accessories Sport The Bluetens Classic is a medical certified device which, depending on the mode of use, allows you to relieve pain, relax or strengthen muscles. The Bluetens box connects to 4 small more→or large electrodes controlled by a free, dedicated application which stimulates 15 parts of the body through unique programs and generic or personalized effective treatments of common problems, including lower back pain, osteoarthritis, sprains and painful periods. Specifications: Dimensions: H:13.1 x W:13.1 x D:67.0 cm Colour: White Guarantee: 24 Months Model Number: 138-BLT02UNISPO