This is a quick review of the Rangetech Bluetooth Shot Timer which connects to a free app on your android or iPhone. This video was made possible through Guardian Nation. It has a much larger display than traditional timers which utilize a small display on the timer itself. Probably one of the best features is that times can be stored by way of the internet or screen shot for training purposes. I also like the fact that it has an internal rechargeable battery which never ran down in a range session. It is also the least expensive timer on the market.