WEIKING TECHNOLOGY BH850 User Manual
Active Noise Cancelling Wireless Headphone
User Manual
Package Includes
• 1 x ANC Headphone
• 1 x Micro-USB Cable
• 1 x AUX Cable (Ф3.5mm)
• 1 x User Manual
Overview of the Headphone
1.
ANC On/Off Switch
2.
ANC LED/Indicator
3.
Volume up/Next track
4.
BT On/Off, Play/Pause
5.
Volume down/Previous track
6.
Power/Pairing/ChargingLED Indicator
7.
Micro USB Charging Port
Auxiliary Input Jack
8.
Microphone
9.
Charging
1. Before first time use, fully charge the built-in battery
2. Plug the small end of the USB cable into the USB
charging port on the left earcup. Plug the other end into
a USB wall charger or computer that is powered on.
LED Indicator
Blinking Red
Solid Red
Red light off
Note: When the battery charge <3%, the headphone will
power off automatically.
Power On
Press the Play/Pause button until you hear a voice saying
“Power on” and the LED indicator light is flashing blue (fast
the first time, then slowly).
Power Off
Press the Play/Pause button until you hear a voice saying
“Power off” and the LED indicator light flashes red once. (If
you are playing music when switching the power off you
will hear a descending tone.)
Battery Status
Need to charge ( charge<10% )
Under Charging
Full charged
Bluetooth connection
1. Press the Play/Pause button and keep it pressed in
when the voice says “Power On”.
2. Keep pressing the Play/Pause button until you hea
voice saying “Ready to pair” and the LED indicator light
is flashing red and blue fast.
3. Go to the Bluetooth settings on your mobile device.
Search and select “Eartrons PRO” from the list.
4. Once your device is paired with the headphones, a
voice says “Connected” and the LED indicator slowly
flashes blue.
Note: When power is switched on (by pressing the Play/
Pause button until a voice says “Power on” and the LED indicator starts flashing blue), the headphones will automatically reconnect to the last mobile device it was connected
to. (A maximum of 8 paired devices can be memorized.)
To save power, the headphones will automatically shut
down after 10 minutes in pairing mode if no devices are
paired.
Music Control
Play / Pause Click
Volume Up Click
Volume Down Click
Next track Press and Hold
Previous track Press and Hold
r a
Speakerphone (in Bluetooth Connection)
Answer an incoming call Click
Reject an incoming call Press and Hold
End the current call Click
Redial last-called number Press and Hold
Listening music from external audio source
1. Power on the headphone.
2. Using the AUX Cable(Ф3.5mm), connect your external
device to AUX-in port on headphone.
3. It will automatically turn to AUX-in mode.
Note: Under AUX-IN mode, headphone buttons and
speakerphone function are not workable.
Noise cancelling function
You can use the noise cancelling function with or without
power on. Slide the “ANC” button to turn on/off the noise
cancelling function.
Note: If the headphone battery is depleted, you cannot use
noise cancelling.
Troubleshooting
Cannot power on: Charge the headphone and make sure it
has enough battery charge.
No Sound: Make sure the music volume is at audible level
on both your device and headphone.
Make sure your device is successfully paired with the
headphone, the LED indicator turn solid blue.
Poor sound quality: Move the device closer to this headphone or remove any obstacle between them.
Cannot connect wi
• The Bluetooth device supports A2DP profile
• The headphone is within 1 Om from the device.
• The headphone is in pairing mode, the LED indicator
blinking blue and red.
Specifications
• Bluetooth Version: 5.0
• Support: A2DP V1 .2, AVRCP V1 .4, HFP V1 .6, HSP V1 .2
• Wireless working range: 10 meters
• Bluetooth transmitter frequency: 2.402-2.480GHz
• Bluetooth transmitter modulation: GFSK
• Driver Unit: Ф40mm (32ohm, 20mW)
• Frequency response: 20Hz-20kHz
• Audio-SNR@1 KHz = 93dB
• Mic-SNR@1 KHz = 92dB
• Active noise reduction: 20dB @ 20Hz-1 kHz (MAX)
• Battery type: Li polymer (3.7V/520mA)
• DC input voltage/current: 5V ± 0.25V I 0.5A
• Playtime: 19-22 hours (varies by volume level and
content)
• Battery charge time: 2-3 hours
• Dimensions: 202 x 150 x 71 mm
• Weight: 254g
th the device: Please check:
Caution
• It is dangerous and illegal (in some jurisdictions) to
use headphones when you’re driving car, riding bike,
motorcycle, or watercraft.
• Do NOT use the headphone in situations where they
might cause distractions or prevent you from hearing
warning sounds.
• Keep the headphone away from fire, water, liquids,
extreme heat: such like the dashboard of your car on a
hot day.
• Do NOT use this headphone at high volume for
extended periods, as this may cause permanent
hearing damage or loss.
• Do NOT drop or knock the headphone on hard surfaces.
• Do NOT use chemicals or detergents to clean the
headphone.
• Do NOT scrape the surface with sharp objects.
• Do NOT make unauthorized alterations to this
headphone.
NOTE: 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 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
Changes or modifications not expressly approved by the party responsible for compliance
could void the user's authority to operate the equipment.
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.
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