TENS UNIT, INTENSITY 7, SYSTEM INCLUDES: DEVICE, LEAD WIRES, FOUR SELF-ADHESIVE REUSABLE ELECTRODES, 9-VOLT BATTERY, HARD PLASTIC , SOLD AS EACH COMPATens Unit, Intensity 7, System Includes: Device, Lead Wires, Four Self Adhesive Reusable Electrodes, 9 Volt Battery, Hard Plastic , Sold As Each Compa Compass Health Intensity 7 Digital Tens Unit Compass Health Intensity 7 Digital Tens Unit Tens Unit, Intensity 7, System Includes: Device, Lead Wires, Four Self Adhesive Reusable Electrodes, 9 Volt Battery, Hard Plastic Carrying Case, Quick Start Guide, And Instruction Manual, Basic Assembly Required, 1