3M MT73H7A4610NA Manual Download

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*1:17 Answer a phone call from the second paired phone
unit during an ongoing call

When a call is active, it is possible to answer an incoming
call from the second paired phone. Answer by a short press

(~0.5 seconds)

on the Bluetooth

button on the right cup

(fig. 4)

*1:18 Control Bluetooth

streaming audio (A2DP)

Play/pause streaming
Short press

(~0.5 seconds)

the Bluetooth

button

(fig. 4).

Skip to next track
Short press

(2x~0.5 seconds)

the Bluetooth

button rapidly

twice

(fig. 4).

Skip to previous track
Rapidly triple press

(3x~0.5 seconds)

the Bluetooth

button

(fig. 4).

DID YOU KNOW: Audio playback will be automatically paused
from the audio playback unit when you have a call in progress or
a two-way radio message. After ending the call / message, the
audio playback will automatically start again.

*1:19 Transmitting and receiving messages on a Bluetooth

connected two-way radio

Press the Bluetooth

button

(fig. 4)

to transmit and release to

receive messages.

*1:20 Adjust Bluetooth

volume

(fig. 3)

Short press

(~0.5 seconds)

the [+] or [–] button to adjust the

volume on an active paired Bluetooth

device.

2. CONFIGURING YOUR HEADSET

2:1 Main menu

(fig. 8)

To enter the menu, short press

(~0.5 seconds)

the on/

off/mode button. Use the On/Off/Mode button to navigate

through the menu and the [+] and [–] buttons to adjust the

settings.
After

7 seconds

of inactivity, the headset will exit the menu.

These are the options available in the menu:

2:2 Channel

Lists all the programmed channels in the headset, up to 22.
Default: 1

2:3 Radio volume

Adjusts the volume level of the incoming radio sound.

(OFF, 1 – 6)

Default: 3

2:4 Ambient listening volume

(level-dependent microphones)

Helps protect your hearing from potentially harmful noise levels.
Constant rumbling and other potentially harmful noises are
reduced, but you can still speak normally and make yourself
heard.

The ambient listening volume adjusts the level-

dependent function for ambient sound.

(OFF, 1 – 6)

Default: 3

*2:5 Bluetooth

radio, phone or streaming volume

Depending on which sound source is connected, you can

adjust the volume on Bluetooth

radio, phone or streaming

volume.

(OFF, 1 – 6)

Default: 3

SMART TIP: When browsing long lists, such as channels, press
and hold either the [+] or [–] button to skip ten items at the time.

2:6 Sub menu

(fig. 9)

To enter the sub menu, press

(1 second)

on both the [+] and

[–] button at the same time. Use the On/Off/Mode button to
navigate through the menu and the [+] and [–] buttons to

adjust the settings.

These are the options available in the sub menu:

2:7 VOX (Voice-operated transmission)

This allows radio transmission without pressing the PTT

button. You can adjust the sensitivity of voice-operated

transmission. (

“VOX off” - “VOX low” - “VOX medium” -

“VOX high”)

Default: VOX Medium

2:8 Sub channel

Sets the sub channel according to lists (F) and (G) if it is enabled.

(OFF, 1 – 121)

Default: OFF

2:9 Squelch (hiss reduction)

Squelch means that background hiss in the earphones is
prevented when the incoming signal is below the set squelch
level. (

“Squelch off” - “Squelch low” - “Squelch medium” -

“Squelch high”)

Default: Squelch medium

2:10 TX power level

This feature controls the power level of the radio transmitter.
There are two output power levels: low and high. The low setting
will reduce the communication range but increase the battery life.
(

“Power” - “High/low power”)

Default: Low power

*2:11 Bluetooth

pairing

(fig. 11)

When you hear the voice message “Bluetooth

pairing”, short

press

(~0.5 seconds)

the [+] button to start pairing. Short

press

(~0.5 seconds)