Six months have passed since the release of the WF-1000XM3, a completely wireless earphone that can be called Sony's famous model. At the beginning of the sale, it attracted attention as it became difficult to obtain. At last, the writer tried to get it, but Sony will release a new product "WF-H800" that is likely to be popular again on February 29. The estimated tax-excluded price is 22,000 yen. .