KossChile BT740i QZ Headphones User Guide
- June 3, 2024
- KossChile
Table of Contents
**KOSSCHILE ** BT740i QZ Headphones
User Guide
BT740i QZ Headphones
The following items are included:
Product Overview
| Function | LEI status | Voice prompts |
|---|---|---|
| Power on | Illuminates white for 2 seconds | Power on |
| Power off | Illuminates red for 2 seconds | I Power off |
| Standby | Flashes white once every 5 seconds | n/a |
| Pairing | Flashes of red and white alternately | Pairing |
| Battery low | n/a | Battery level low |
| Charging | Stays red while chargingStays white while fully charged | n/a |
Tips: When the distance between the headphone and the device is beyond effective range, headphones disconnect pacts with the device. The headphone will power off automatically once not active for 10 minutes.
Pairing
Pair One Device
Note: When the headphones and device have been paired once, they will
automatically connect when the headphones is on and Bluetooth is activated on
the device.
- 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.
- Activate Bluetooth on your device.
- On your device, open Settings.
- 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 a call: Press the Multifunction button once.
End the current call and answer the 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 the 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 the 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 a voice assistant (Device support needed)
In standby mode, double press the Multifunction button, wait for the 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/VolumeDown
Short press the Volume + to incrementally increase the volume. Short press the
Volume – to incrementally decrease the volume.
Note: A 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 you
recharge your headphone at least once a month.
Active Noise Cancellation (ANC)
When powered on and/ or connected to the device via an audio cable
ANC LOW: Long press the ANC button for 2 seconds
ANC HIGH: Longpress 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 equipment 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 equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment 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.
– Connect the equipment into an outlet on a circuit different from that to
which the receiver is connected.
– 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 the general.
RF exposure statement
The device can be used in portable exposure conditions without restriction
Safety and Care
Using earphones 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 it 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
conditions. Do not use any corrosive cleaner/oil to clean the headphones. If
the headphones come in contact with liquid s, quickly wipe them 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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