The site review function of the site was expanded. The size of sound and ease of use can also be reviewed.

2016/12/16
by site administrator

https://worldwhistle.com/managementrecord/sitedevelopment/20161216-01/

Please see the sample from above address. Evaluation of 6 items is possible.

It is strange that there is an item called "tone color" in the whistle holder, so this evaluation system is applied only to the category whose category is "whistle".