We've taken the best features of our Pocket Pro II and enhanced them to create the ProTimerBT, the most sophisticated timer on the market. This advanced timer allows you to gather more detailed practice session data using its intuitive built-in user interface or the PTLink mobile app. You can easily review your shot data right on the timer's display and import it to the PTLink app at any time for further analysis. The ProTimerBT also lets you add notes and attach photos of your targets to each shot string, providing a comprehensive record of your training. It operates with a single 9V alkaline or lithium battery (not included), making it the perfect tool for anyone looking to elevate their shooting practice.