153Using the Optional Accessories (Bluetooth Devices/Voice Unit)Using the Bluetooth headset11 Reconnect the speaker cable extending from the top cover to the socket on the mainboard.12 Attach covers using the 8 screws.Setting the Bluetooth headset operationsThe following settings may be changed for convenient wireless headset operationaccording to your personnel preferences.• Listening to receive audio using the headset only, or listening with both the headsetand the transceiver speaker• Saving the headset battery power• Switching between transmit and receive with [PTT], or automatically switching totransmit when you begin speaking [VOX]• The [VOX] gain may be set to automatically switch to transmit upon detecting voicesincluding low volume sounds1 Turn on the transceiver2 Press and hold for over one second.The Setup menu appears.3 Rotate the DIAL to select [12 OPTION], then press.4 Rotate the DIAL to select [1 Bluetooth], then press.Tip This option can be selected only when BU-2 is installedinto the transceiver.The settings screen appears.5 Rotate the DIAL to select [1 AUDIO], then press.6 Rotate the DIAL to select “AUTO” or “FIX”.“AUTO”: When a Bluetooth headset is connected, the audio from the radio speakeris muted and sound is heard only from the headset.“FIX”: Audio can be heard from both the Bluetooth headset and the speaker of thetransceiver.Tip The default setting: AUTO
