Yamaha HPH-150WH headset for the Yamaha P-525WH piano

I am about to purchase the Yamaha HPH-150WH headset for the Yamaha P-525WH piano. It is for my two kids (both under 10 years old) who have been taking piano lessons. Would this headset be a good purchase for my kids? I was also considering the ATH-M50XWH but it seems like it won't be as comfortable.