The Speedstacks Gen 4 Pro Timer is endorsed by the World Cubing Association (WCA) and World Sport Stacking Association (WSSA) as official timing device.  The Gen 4 Pro Timer is a detachable precision competition timer with the most modern design and sensitive touch pads of any timer and sports the following features and improvements:.

• Touchpads are canted outward to better match natural body geometry
• Touchpads fit the natural curve of your hand, resulting in more accurate stopping
• Larger LCD Display with improved readability
• Both power and reset buttons are now protected by a raised section of the Timer housing
• Now powered by AAA batteries (not included), which have a longer life and are less expensive to replace
• Accurate to 3 decimals (0.000) seconds
• Memory feature to save your best times
• Data port to connect to external display
• Gen 4 Graphics
• Compatible with the Speedstacks Gen 3 or Gen 4 stackmats.