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Quick Start Guide
BH480NC
Controls
Getting Started
Charging
• Before use, please read this quick start guide carefully
and keep it in a safe place.
• Charge the built-in battery for at least four hours
before first use.
• Do not leave unattended while charging.
• Please regularly charge the battery if you have not used
the cable for a long time (more than 3 months).
• Please use the supplied charger cable only.
To charge the internal battery, follow these steps:
1. Connect the smaller end of the supplied USB cable to the
MICRO USB jack.
2. Connect the other end to a powered USB jack on your
computer or an AC power supply (not included).
3. The Charging/Bluetooth LED will change color to red
during charging.
4. When fully charged, the Charging/Bluetooth LED will
turn off.
Low Battery Warning
When the battery voltage drops below 3.0 V, there will be a
warning beep every 60 seconds.
The headphones will automatically switch off when the
battery voltage drops lower then 2.9 V.
WARNING:
Avoid the following:
• Replacement of a battery that can defeat a safeguard.
• Disposal of a battery into fire or a hot oven, or
mechanically crushing or cutting of a battery, that can
result in an explosion.
• Leaving a battery in an extremely high temperature
surrounding environment that can result in an explosion
or the leakage of flammable liquid or gas.
• A battery subjected to extremely low air pressure that
may result in an explosion or the leakage of flammable
liquid or gas.
WARNING:
Always make sure to protect your ears by
muting or lowering your monitoring system’s volume down
all the way before wearing the headphones.
ANC (Active Noise Cancellation)
The ANC (Active Noise Cancellation) function is available in
both wired and wireless conditions. The ANC circuit must be
switched on/off manually.
To switch on the ANC circuit, move the sliding ANC switch to
the "on" position. The ANC indicator LED will light green.
To switch off the ANC circuit, move the sliding ANC switch
back to the "off" position. The green LED light will shut off.
Bluetooth pairing
You will hear voice prompt for pairing after power on. Please
refer to function map table for other functions.
USB charging port
Charging/Bluetooth
LED
Control buttons
ANC on/off
switch
Microphone
ANC
Indicator
LED
NFC
Logo
1⁄8” audio
jack
NFC (Near Field Communication):
You can also pair your
headphones to a Bluetooth device by using the built-in
NFC function. To pair with NFC, simply bring your Bluetooth
device physically close (within 5 cm or 2 inches) to the NFC
marking on the headphones.
Bluetooth functions for Bluetooth-enabled earphones
can be accessed from the control section embedded in the
right earpiece:
Power ON / OFF
Power On
Press center key for
3 seconds
Power Off
Press center key for
3 seconds
Music Controls
Play the Track
Press center key once
Pause the Track
Press center key once
Volume Up by 7%
Press “+” key
Volume Down by 7%
Press “-” key
Next Track
Long Press “+” key
Previous Track
Long Press “-” key
Phone Call Controls
Answer incoming call
Press center key once
Refuse incoming call
Press center key twice
End the call
Press center key once
Volume Up by 7%
Press “+” key
Volume Down by 7%
Press “-” key
Last number Redial
Press center key twice
Mic Control
Mic mute / unmute
Long press center key
Voice Assist Control
Activate Voice Assist
Press center key three
times
LED Indication
Charging
Red
Fully charged
LED off
Pairing mode
Red and Blue lights
flashing alternately
Bluetooth connected
Blue
ANC activated
Green
