Dual purpose of Knee control & Desktop style 

• Multi swithcing function    
• Easy to change Desktop style into knee control with mounting bracket Speed:1,000∼Max 50,000min.
• Low noise,
• Low vibration.
• Excellent Durability.
• Ceramic Ball Bearing.
• Ergonomic Design.
• Self-Diagnosis Function.
• Error Code Display Function.
• Auto-Cruise Function.