Equipped with Hall effect sensors. Cleaned inside and out, in beautiful condition. ◇ Ginfull ver. 7, equipped with Hall effect sensors ◇ Alcohol cleaned inside and out ◇ Center adjusted ☆ What are Hall effect sensors? Unlike analog sticks, which detect input through physical contact points, Hall effect sensors use magnetism to detect input, thus eliminating physical contact points. Therefore, they are less prone to drift caused by wear and tear. * Some drift may occur due to game settings, etc., but this is due to high sensitivity and is not a malfunction. ◆ Disassembled and serviced, but please understand that this is a used item before purchasing. ◆ Returns are not accepted to prevent product substitution, so please be aware of this.