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, press and hold the ANC on/off switch
for 1 second. The ANC indicator LED will light green.
To switch off the ANC circuit, press and hold the ANC on/off
switch. The green LED light will shut off.
USB charging port
Charging/Bluetooth
LED
Control buttons
ANC on/off
switch
1⁄8" audio
jack
Microphone
NFC logo
ANC
indicator
LED
Содержание BH470NC
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