So far so good. - Competition Electronics ProChrono DLX with Bluetooth

First time out with 338 Lapua hand loads. Shot two strings of eight rounds, the chronograph measured every round. The android app worked perfectly and the voice called out all the velocities. All the functions of chronograph worked as intended. I am very pleased with the chronograph so far, and am taking it back out today for further bullet testing. For the price, I don't think you can go wrong. I would recommend this product. The only reason why I gave it four stars instead of five is because these sites bug you for a review soon after you purchase the item and don't give you enough time to fully test the item.