very good condition This is a Braun Oral-B SmartGuide, a wireless display unit that provides feedback during brushing with compatible Oral-B electric toothbrushes. It helps monitor brushing time and guides users through different quadrants of the mouth for a thorough cleaning. The display can show brushing modes, pressure warnings, and timer information. It's compatible with various Oral-B electric toothbrush models, typically those featuring SmartGuide technology.
eBay