Purchased in 2022. Operation confirmed. The price is set relatively low, so I cannot offer any further discounts. Please be aware of the following: - No box or instruction manual - Item will be shipped with the main unit and mat only - Batteries will be removed before shipping - There is a stain on the LCD screen that cannot be wiped off - The mat also has some light stains Please refer to the photos. As this is a used item, please refrain from purchasing if you are overly concerned about its condition.