Necessary enough, especially not dissatisfied. The backlight is dark and readable in the dark. In this case it may have been good for the same type manufacturers without backlights of the same manufacturer.
Although it installs with a double-sided tape, even if it pastes it after cleaning the pasting surface with a parts cleaner, the adsorption power of the hook and loop fastener is strong and it will peel off. In addition, the feeling fixed when it is a Velcro tape is low, it seems that it will peel off when using the light button next to it. So, I installed it with thick double-sided tape without using Velcro. I feel that worry that this person is strongly peeled off feeling fixed.
I attached it to the handle part of a mini-bike (Super Cub). It is very compact and does not get in the way. However, the display is easy to see, and you can check the time firmly while driving. Although I used it in the touring (1,000 km or more) this time, the double-sided tape and the Velcro stick did not peel off. I am very satisfied.