Back Support 8 W Pocket Medium 32 38 Electrode Lotions Gels Superior sound quality * Extended Sterilization Superior sound quality * Extended battery life * Enhanced probe sensitivity * One year full warranty * The large informative display shows battery life signal quality and extended 50 to 220 bpm heart rate * The 5 MHz vascular probe is designed to ease location of deeper vessels * The medium width beam and pencil style shape provides optimum sensitivity and ease of use * 30% 80%RH Temperature 5° 40 ° 32 38 * 8 wide double ply three panel elastic belt features a posterior pocket for moldable insert (sold separately) * Dura Foam front panel closes with pressure sensitive hook * Measurement is hip circumference * Provides even compression to abdomen as well as lumbosacral area Fits hip circum