ARDUINO BASED - 24 AMBER COLOURED LEDS THAT ARE BRIGHT ENOUGH TO BE VISIBLE IN BROAD DAYLIGHT - SINGLE MULTIPURPOSE BUTTON - BLACK WRISTBAND INCLUDED - PRE-PROGRAMMED REFLEX GAME AND TIME VIEW - EASILY RE-PROGRAMMABLE (BY USING THE K1201 CRADLE FOR VELLEMAN WATCH OR A USB TO UART MODULE) - ARDUINO LIBRARY AVAILABLE - OPEN-SOURCE CPU: ATMEGA328P - RTC: PCF8523TS - STAND-BY CURRENT CONSUMPTION: 2 ?A - BATTERY: CR2032 (NOT INCL.) - DURAÇÃO DA BATERIA: 2 YEARS (NORMAL USE) - DIAMETER: 35 MM - WRIST BAND WIDTH: 18 MM - WRIST BAND MATERIAL: SYNTHETIC BLACK FABRIC - WRIST BAND CLOSING: STEEL BUCKLE - HEIGHT: 9.6 MM