Effect:\n1.symptomatic relief-rub, press\n2.management of chronic intractable pain-vibrate, auto\n3.eliminates shoulder ache-beat, beat (fast)\n4.increases local blood circulation-beat, beat (fast)\n5.muscle massage-press, auto\n\n\nmodel: fs-201\noutput channel: single\npower supply: dc 4.5v \noutput voltage: 0 - 130 vpp \nfrequency: 150 hz.\npulse width: 50 us\nfunction mode: tapping- slow x 3minutes \nkneading: x 3 minutes\nfluctuations: x 3 minutes \ntapping-fast: x 3 minutes \npress: x 3 minutes\nauto timer: 15 minutes\nphysical size: 120mm(l) * 52mm(w)