The Competition Electronics ProTimerBT is the next generation of shot timer. It features Bluetooth capability with a free mobile app for Apple, Android, and Kindle devices to catalog data and provide an enhanced user interface. The bright LED indicator signals the start and can be useful for those with hearing loss. The headset jack allows for a private practice session when the beeper may be a nuisance to others. The built in shot string memory saves up to 50 strings for later review on screen. The ProTimerBT has increased sensitivity that can pick up the snap of a finger and a built in hit factor scoring calculator for USPSA shooters.