KOSS BT740IQZ Bluetooth Wireless Headset User Manual
- June 5, 2024
- KOSS
Table of Contents
KOSS BT740IQZ Bluetooth Wireless Headset
In The Box
The following items are included:
Product Overview
Status Indicator
Pairing
Pair One Device
Note: When the headphones and device have been paired once, they will automatically connect when the headphon es is on and Bluetooth is activated on the device.
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Make sure that the headphones are turned off and are within 1 meter of your device, then press and hold the Multifunction button until the LED indicator flashes red and white alternately (about 5 seconds) then release the Multifunction button.
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Activate Bluetooth on your device.
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On your device, open Settings.
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Select Bluetooth. If Bluetooth is off, turn it on.
The device will search for new devices automatically. -
Select “KOSS BT740iQZ” from the device menu.
Pair Another Device
Multipoint technology enables you to pair another device and take a call from
either.
To pair a second device, follow the “Pair one device” instructions again. When
the headphones are restarted, they will pair with both devices.
Call switching
When the first phone receives a call, press the Multifunction button once to
answer it. If the second device receives a call, you can answer the second
call by double-clicking the Multifunction button, which places the first call
on hold. 
Call
- Answer a call
- Press the Multifunction button once.
- Reject a call
- Press and hold the Multifunction button for 2 seconds.
- End Call
- Press the Multifunction button once.
- End current call and answer a new call
- When a new call rings during a call, press the Multifunction button once to answer the new call and end the current call simultaneously.
- Place the current call on hold and answer a new call
- When a new call rings during a call, double press the Multifunction button to answer the new call and place the current call on hold
- Reject the new call on hold the current call
- If a new call comes in during an active call,long-press the Multifunction button for 2 seconds to reject the new call and keep the active call
- Switch between the headphones and device
- Press the Multifunction button for about 2 seconds during a call to switch to the mobile phone. Redo this operation to switch back to the headphones
- Calling with voice assistant
- In standby mode, double press the Multifunction button, wait for device prompt, and tell the device to dial the name of a stored contact
Music
Music Play/Pause
Press the Multifunction button once to play/pause music. (Some devices may require you to start a media player first.)
Next Track/Previous Track
- Long press the Volume + for 2 seconds once to skip Next Track,
- Long press Volume – for 2 seconds once to skip Previous Track.
Volume Up/Volume Down
- Short press the Volume + to incrementally increase the volume.
- Short press the Volume – to incrementally decrease the volume.
Note: Media player is needed to support this functionality.
Basic Operation
Charging
It takes 2.5 hours to fully charge headphones. The red indicator light is always on during charging;The red light will go out immediately after unplugging the charging cable; When fully charged, the red light goes out and the white light stays on.
Note : The lifetime of the battery will be significantly reduced if your
headphones are left uncharged for a long period of time. We recommend that
vouurecharae vouir headphones at least once a month. 
Active Noise Cancellation (ANC)
When powered on and/ or connected to device via audio cable
- ANC LOW: Long press ANC button for 2 seconds
- ANC HIGH: Long press ANC button again for 2 seconds
- ANC OFF: Long press the ANC button again for 2 seconds
Ambient Sound
- When ANC is ON
- AMBIENT SOUND ON: Short press the ANC button
- AMBIENT SOUND OFF: Short press the ANC button again
FCC Statement
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates electromagnetic energy and, if not installed and used in accordance with the instructions, may cause harmful interference with other radio communications. However, there is no installation. This his equipm ent generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipm ent does cause harmful interference to radio or television reception, which can be determined by turning the equipm ent off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connet the equipment into an outlet on a circuit different from that to which the receiver is conn ected.
- Consult the dealer or an experienced radio/TV technician for help.
This device complies with Part 15 of the FCC Rules. Operation is subject to
the following two conditions:
(1) This device may not cause harmful interference, and (2) this device must
accept any interference received, including interference that may cause
undesired operation. Changes or modifications not expressly approved by the
party responsible for compliance could void the user’s authority to operate
the equipment.
The device has been evaluated to meet general RF exposure statement.
The device can be used in portable exposure condition without restriction
Saftey and Care
- Using earphone at high to moderate volumes for extended periods of time will result in permanent hearing damage. It is advised that you keep volume levels moderate to low at all times for your safety.
- Do not use while driving a car, cycling, operating machinery, or performing other activities that require you to hear surrounding sounds.
- Do not use headphones during a thunderstorm, the headphones may not work properly under those conditions, and may increase the risk of being hit by lightning.
- Headphones may not work properly in high temperatures or high humidity condition s.
- Do not use any corrosive cleaner/oil to clean the headphones.
- If the headphones comes in contact with liquid s, quickly wipe away .If submersed in water, do not turn the headphones on until completely dry. Tips: Submersion in liquid voids the warranty.
- Keep the headphones and packaging out of reach of children .
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