1)Vibracare Percussor is our durable, hand-held percussor used in respiratory therapy applications. Totally self-contained, and weighing less than three pounds, it provides optimal freedom of movement and portability with a ten foot hospital grade power cord. This model may be used with a variety of applicators and has a continuously-variable speed range of 20 - 50 cycles per second. This combination of applicators and speeds provides for a highly-versatile treatment range. It is the only hand-held percussor/massager to be granted C.S.A's highest medical operational rating. Comes with applicators 250, 251, 253 and 234. A pediatric version is also available. 2)Unit Advantages: *Portable, lightweight hand-held device. *Comfortable soft rubber hand grip..