Niles MF1VF BULK IR MicroFlasher with Visible Feedback Product DescriptionEasy Hook-up, Visual Feedback Miniature Size, Low Profile, Extremely Small Footprint Transparent To Infrared Light, Secure Adhesive Mounting Flashback LED On Flasher Provides Visual Confirmation Of Operation 10' Cable With3.5mm Plugs For Easy Installation Packaged For Retail Display Dimensions 5/16" W X 3/16" H X 1/2" D BLACK