Blink & Click: Effortless Interaction with the Blink of an Eye- The GlassOuse Blink Switch, a convenient assistive switch that allows individuals with limited mobility to control digital devices with simple eye blinks. The Blink Switch features an eye sensor that accurately detects intentional eye blinks* prompting an accurate and precise click on your computer, mobile phones or tablets. Blink switch features 3.5mm jack port connection and pairs perfectly with GlassOuse PRO/Link* or GlassOuse V1.4 (or lower) Personalization is important, and the Blink Switch comes with an adjustable blink sensitivity setting. This makes it convenient for a wide range of individuals, as users can customize the switch to their needed comfort level. - GlassOuse PRO/Link* or GlassOuse V1.4 (or lower) is required for this to attach to. The GlassOuse Blink Switch provides many benefits. With this innovative assistive switch, users can effortlessly navigate applications, browse the internet, and engage with software, all through simple eye blinks. It empowers individuals with limited mobility to gain independence and convenience in their daily lives.