 CAD TXHGXLU Handheld Transmitter for GXLU Wireless System (Frequency K) The TXBGXLU Handheld Transmitter for GXLU Wireless System from CAD Audio can be used together with the GXLU wireless receiver and bodypack to create a wireless system operating on UHF frequency. The transmitter is powered by two AA alkaline batteries for approximately 10 hours of operation. Transmitter switch for power and mute on/off Battery-life and power-indicator lights Battery life of >10 hour |