Application: the nutritone facial beauty system is a gentle rejuvenating treatment which provides your skin with gentle electronic stimulation. simple and easy to use, the unit can be held in one hand and used over the entire face.\n\n\nmodel: fs-253\noutput channel: single\npower supply: dc 9v\noutput voltage: \n0 ~ 100vpp(no load)\nfrequency: face: 0.6 hz jowl: 5.3 hz eye: 5.3 hz\npulse width: face: 0.4s jowl: 50ms eye: 50ms\nauto timer: face: 12 min jowl: 12 min eye: 3 min