Roson A3S Top Mounted Dental Unit is a premium ergonomic dental chair designed for advanced clinical performance and maximum treatment efficiency. Key Features: - Top-mounted delivery system. - Ergonomic patient chair design. - Medical-grade color LCD display. - Smart power-on self-test system. - Error code display for quick diagnostics. - Soft start / soft stop chair movement system. - One-key intelligent drainage system. - Handpiece holder with 4 adjustable angles (30°–80°). - Seamless microfiber leather upholstery. - Digital illumination and color temperature control. - Infrared non-inductive dental light control. - Philips LED lamp beads. - Three customizable memory chair positions. - Intelligent spittoon flushing system. - Thermostatic water system. - Infrared & gravity dual-induction water supply. - Adjustable assistant table with anti-collision system. - Ergonomically shaped dentist stool. Standard Configuration: - Touch-free water control system. - Flexible and adjustable instrument placement. - Easy-clean durable structure. - Multiple upholstery color options. - Customizable configuration based on clinic requirements.