electronic device small, rectangular shape a red, yellow, or green light a black or white rim around the light a clear, plastic casing a switch or button to activate the light a power cord or battery pack
blinker which has electronic device blinker which has small, rectangular shape blinker which is a red, yellow, or green light blinker which is a black or white rim around the light blinker which is a clear, plastic casing blinker which is a switch or button to activate the light blinker which is a power cord or battery pack