Battling some pain? Let today’s deal help to put you back in the game… Today we’re offering you a TENS ‘pain relief’ machine for just £20, saving you 60% compared with our retailer’s price of £49.99 (correct as of 26.8.15). The TPN 200 Plus TENS Machine is a simple to use device that aims to use electrotherapy to relieve you from any back pain. The dual-channel machine features selectable modes (modulation, constant and burst), as well as a flip down cover to protect the controls and an integral belt clip. With everything you need to get started, including instructions, battery and a TENS therapy guide book, you might just wonder how you ever coped without it!