Sony unveiled its fourth-generation DWX wireless microphone system at IBC 2026, featuring 32-bit float recording in the new DWT-B40 bodypack transmitter and a four-channel DWR-R40Q receiver. The system maintains backward compatibility with earlier DWX generations (post-2012), records to microSD cards up to 2TB capacity, and delivers 1.1ms latency while reducing prices by 30%.