The Pocket Pro measures shot time intervals for personal practice and scoring matches! A timeless design that has set the standard for shot timers. Requires one 9 volt alkaline battery for operation. Review up to 50 shots- forward or reverse Ergonomic design allows right or left hand operation without covering the buzzer and sensor Saves batteries with automatic power down after 10 minutes of inactivity Large display with .5 inch tall numbers Displays time to 199.99 seconds Adjustable sensitivity Direct review of shots, split times, and shot number Par time for a ""second beep"" to indicate a time limit Switch sel Mfg: Competition Electronics