Mass-Kobo's high-end audio shopping site has resumed.
But I'm sorry. The English shopping site of Pro-Audio is currently under construction.

MASS-kobo Headphone Series price increase from 15. May 2022.
(These prices include PayPal fees and shipping costs, but no tariffs are included)
model 394U 730,000 JPY
model 395 Discontinued
model 424 220,000 JPY
model 428 220,000 JPY
model 433 340,000 JPY
model 465 (new product) 2,200,000 JPY model424BC Series 30,000 JPY