The multi-speed measuring device "RED EYES POCKET" is now available! Great for practice! Easy to do by yourself! Easy to carry! Know your own data, level up, and increase your flying distance! The highly popular "New Red Eyes Pocket", which allows you to easily measure head speed and flight distance by yourself, now has the "HS-130" equipped with new functions. In addition to displaying the estimated flight distance for each club number, the large screen allows you to see all the necessary information at a glance. By knowing your own data, you can aim for further improvement. With the addition of an approach measurement function and new effects that can be used for baseball and soccer, it is even more convenient, easy to use, and fun for the whole family. External dimensions: 55mm x 116mm x 48mm (excluding protrusions) Weight: 131g Power supply/battery life: 6V (4 AAA batteries) Battery life: Approximately 1 month at 1 hour per day Packing contents: Main unit, instruction manual * Batteries not included