What are the tips for choosing a Bluetooth helmet?

At present, most of moyou Bluetooth helmets mainly have the following factors: weather protection, sun protection, cold protection, enjoying road music and convenient call functions, and anti traffic police. However, the most important function is to ensure personal safety. They forget the main role of helmets. How should they guide moyou to buy national standard helmets? Brother has a word to say: be sure to choose a good Bluetooth helmet, because your head is your own!

When selecting a helmet (full helmet)

First determine the circumference size of your head circumference, then hold the seat belt with both hands, open it outward and wear it down from your forehead. It's normal to clip your face and cheeks as long as you don't clip your temples. Shake your head left and right to see if there is a large or small amount of activity. The new helmet should have a little gap. If you haven't worn it before, you feel a little suffocated or tight. This is the feeling of the new helmet. It will be better after wearing it for a week. The new sponge layer will relax after extrusion. If the helmet is large and the head can swing back and forth in it, it is not safe.

For example: a box of matches only contains half a box of matchsticks. Shaking the matchbox with your hand will make a loud noise. If you fill the matchbox with matchsticks, there will be no such phenomenon. Similarly, the head is the matchstick and the matchbox is the helmet. In case of impact, the shell is first transmitted to the inner shell, which plays a buffer role. When the impact of the shell disappears, the head is still moving due to inertia, which is the same as the above example. Finally, fasten the safety belt (this is ignored by many riders, which increases the potential safety hazard).

The correct measurement method of Bluetooth Helmet - take a tape measure and wrap it around the temple to the forehead to the back of the brain in parallel. The data obtained is the correct size needed to buy the helmet! (be careful not to measure the eyes or head) generally, 55 ~ 56cm is s; 57 ~ 58cm is m; 59 ~ 60cm is l; 61 ~ 62cm is XL; 63 ~ 64cm is XXL. If you don't want to bring it very tight, you can consider advancing a number, because in principle, the belt method should fit the head and face, and the number of sizes of each brand is also different. Bluetooth helmets with high price are generally tight, and the so-called average size is L. I hope you can communicate with the merchant before deciding to buy and select.