Overview%0D%0ATENS%20(Transcutaneous%20Electrical%20Nerve%20Stimulation)%20Machines%20work%20by%20emitting%20a%20controlled%20micro-electronic%20current%2C%20called%20impulses%2C%20through%20the%20skin%20to%20block%20the%20nerves%20from%20transmitting%20pain%20signals%20to%20the%20body%E2%80%99s%20pain%20centre. %20TENS%20technology%20blocks%20the%20pain%20signals%20safely%20and%20effectively%20through%20fast%20electrical%20impulses%20which%20override%20the%20slower%20pain%20impulses%20that%20travel%20along%20your%20nerves. %0D%0A%0D%0AClinically%20proven%20pain%20relief%0D%0AApply%20where%20it%20hurts%0D%0AOdour%2C%20drug%20and%20latex%20free%0D%0ADiscreet%20and%20easy%20to%20use%0D%0A15%20intensity%20levels%0D%0A20%20minute%20treatments%2C%20auto%20shut-off%0D%0AUp%20to%2050%20uses%20before%20replacing%20battery%2Fgel%20pads%0D%0AStarts%20working%20instantly%0D%0ASafe%20and%20effective%0D%0ANo%20wires%0D%0APortable%2C%20convenient%20carry%20case%20included%0D%0APulse%20rate%2035Hz. %20Pulse%20width%20200%C2%B5s%20(fixed)%0D%0A%0D%0AHow%20to%20Operate%0D%0A%0D%0APress%20and%20hold%20(%2B)%20button%20for%203%20seconds%20to%20power%20the%20unit%20ON%20and%20listen%20for%20the%20beep. %20Note%3A%20The%20unit%20will%20not%20operate%20if%20it%20is%20not%20in%20contact%20with%20your%20skin. %0D%0APress%20(%2B)%20button%20again%20to%20activate%20device. %20Continue%20to%20press%20the%20(%2B)%20button%20until%20you%20feel%20the%20sensation%20of%20the%20impulses. %0D%0AUse%20(%2B%2F-)%20button%20to%20adjust%20intensity%20level. %20There%20are%2015%20levels. %0D%0AThe%20device%20automatically%20powers%20off%20after%2020%20minutes%2C%20or%20press%20and%20hold%20(-)%20button%20for%203%20seconds%20to%20power%20OFF.