XFT-2007 Nerve and muscle stimulator relieves pain in shoulders, back, waist and other parts of ... easy to use. XFT- 2007 Nerve and muscle stimulator: XFT-2007 Nerve and muscle stimulator relieves pain in shoulders, back, waist and ... muscles and incise fiber contraction. XFT-2007 Nerve and muscle stimulator adopts digital control system. Usage mode, body part, speed and ...