top-mounted, 2 computerized control system, left & right deLivery system.CE product STANDARD EQUIPMENT & FEATURES: 24V noiseless DC motor Major & Assistant manual operating systems Auto adjustable cup filler equipment 1 set Optional switch purefied water & tap water system 1 set Auto spittoon flush control system 1 set Integrated rotable tempered glass spittoon 1 set Auto water-pressure Saliva ejector 1 set Auto high sucker 1 set Automatic constant-temperature water supply system 1 set 3-way syringe( air/ water/ fine spray) 1 set flow-voltage film viewer 1 set All- direction cold light lamp 1 set External water tank 1 set Up-hang instrument tray 1 set Luxury chair for doctor 1 set Instrument tray with air brake SPECIFICATIONS: power 110V/ 220V 50Hz 2A air pressure > 0.55Mpa( clean oilless dried ) water pressure 0.2Mpa^ 0.4Mpa OPTIONAL ACCESSORIES 4-hole high-speed turbine handpiece joint. imported / domestic product two pieces 4-hole low-speed turbine handpiece joint, imported / domestic product one piece Ultrasonic Teeth Cleaner, imported / domestic product 1 set Light drying, imported / domestic product 1 set Endoscope system ( imported / domestic product) 1 set Teeth cleaner water supply joint Under-hang instrument tray Panoramic- view film viewer under-hang instrument tray only)