[Applicable model]
DWT-B01N
 *Firmware depends on the frequency version.
 　V1.17：For 33CE/42CE and 30A/42LA version
 　V2.21：For 21CE and 14UC version  

[Installation]
Please install WSU (Wireless Microphone System Updater) on your computer before updating the firmware. (Requires WSU version 1.10 or later.)
Please refer to Help Guide for firmware update procedure.

[Contents of update]
 - Improve accuracy of battery remaining time for BATTERY TYPE4.
 - Improve connection compatibility for Cross Remote.
　　　Frequency Band TV38 (606.025 - 614.000MHz) is added to 33CE version.