Users Manual

CMIIT ID：XXXXXXXXX
User Guide
TWS ANC Buds
User Guide
TWS ANC Buds
Thanks for your choice of our product.
Linner TWS ANC buds integrate stylish appearance and functions, allowing you to experience quiet
wireless calling and listening to music even in noisy environment. It is a good choice for you to work,
go out, and drive.
True Wireless Stereo Active Noise Cancellation Technology
With the technology of Bluetooth, you can select compatible communication devices without using
cables. Bluetooth does not require keeping the phone facing earphones directly, but the maximum
distance between them should not exceed 10 meters (about 30 feet).
Using active noise cancellation technology, the microphones collect the noise, then the acoustic
engineer calculates and designs a series of software and hardware algorithms, the circuit generates
a reverse sound wave that is opposite to the noise and emits it through the horn. Finally, the noise
and the reverse sound wave cancel each other.
Specifications
Model: NC300 PRO
ANC Noise Reduction: 35dB
Bluetooth Version: 5.2
Impedance: 32Ω
Charging Port: Type-C
Earphone Battery Capacity: 45mAh*2
Battery Capacity (Charging Box): 380mAh
Charging Time (Earphone): 1.5H
Charging Time (Charging Box): 2H
Working Time (ANC OFF): 7.5H
Working Time (ANC ON): 6.5H
Overview and Packing List
The package contains Linner NC300 PRO TWS ANC buds, a charging box, 3 sizes of ear buds (the
M size ear buds are pre-installed on the earphones), USB-C charging cable, user guide, and warranty
card.
Earphone Function Diagram
ANC radio hole
Sensing area
Indicator light
Charging pin
Infrared in-ear detection
Anterior cavity vent hole
Calling MIC
Ear buds
Touch Control Prompt
Please touch to control instead of tapping sensing area.
The sensing area is located in the earphone handle’s
upper part.
Wearing Earphones
In order to obtain a better noise cancellation effect, the wearing angle
can be adjusted appropriately after wearing, so that the earphone is
slightly pushed into the ear canal.
Choose the Right Ear Buds
Appropriate sizes of ear buds are essential to noise cancellation
experience, sound quality and comfort. Please try on different sizes of
ear buds. Please note that you may need to use different sizes of ear
buds for your left and right ears.
Auto Power ON/OFF
Auto power on
Open the cover of the charging box, the earphones will
power on automatically.
Auto power off
Put the earphones into the charging box, close the cover,
and the earphones will power off automatically.
Earphones Pairing
In order to convenience operation, the pairing between left and right earphones has been completed
before leaving from factory.
When the cover is opened, earphones are turned on automatically, the left and right earphones are
interconnected, and enter into connection or pairing status.
Bluetooth Pairing
Open the charging box, keep the earphone in the charging
box, triple click the charging box button to force the mobile
phone to enter into pairing state. Please note that this
operation will not clear the previous Bluetooth pairing
record.
After the pairing of the left and right earphones, open the
Bluetooth search in mobile phone, and connect the device.
Then the mobile phone displays the pairing name as
“NC300 PRO”.
When using again, double earphones will pair with each
other and return to the last pairing device automatically.
For single earphone use, pick up one side and keep the other side closed in the charging box.
After the earphone which is taken out failed to reconnect to TWS, it will enter the reconnecting
and pairing coexistence mode within 2 seconds. After connecting the phone, take out another
earphone and enter binaural mode automatically.
Stay in the pairing or reconnecting state for 10 minutes. After 10 minutes, earphones enter the
standby mode but will not power off automatically.
Bluetooth Lost
Turn off mobile phone’s Bluetooth, earphones will enter the pairing mode and do not connect
back. (It will continue for 10 minutes. If no connection, earphones enter standby mode after 10
minutes.)
If the connection range is exceeded, it will enter the back-connection mode, and can pair with
other devices at the same time. (It will continue for 10 minutes. If no connection, earphones enter
standby mode after 10 minutes.)
Light Sensor Function
ANC mode: Earphones will enter ANC mode automatically when wearing. Earphone will enter
the ambient Mode automatically when using single.
Answer the call: When calling comes, wear the earphones to answer the call.
Music pause and play: Using double earphones to listen to music, pause the music when one
earphone is out, and back to play automatically when re-wear within 1 minute.
Touch Operation (Operation in wearing of double earphones)
Triple touch the L sensing area, then skip to the
previous song
Double touch the R sensing area or single
earphone in-ear/ out-ear to play or pause music
Triple touch the “R” to skip to the next song
Touch the “L” to decrease the volume
Touch the “R” to increase the volume
Double touch the “L” to switch to ambient mode
Long press the “L” for 2 seconds to enter or exit
ANC mode
Calling Control
Touch the sensing area to answer the call or it will
answer the call automatically when wearing
Long press the sensing area for 2 seconds to hang
up the call
Long press the sensing area for 2 seconds to reject
the call
Voice Assistant
When using double earphones, press the “R” for 2 seconds, then leave hold after hearing “BEEP” to
wake up voice assistant.
When using single earphone, press “L” or “R” for 2 seconds, then leave hold after hearing “BEEP” to
wake up the voice assistant
Reset
Open the charging box and keep the earphones in box. Long press the button of charging box for
10 seconds until the earphone LED lights and the charging box LED lights flash 3 times at the
same time, the earphone will restart automatically after clearing the pairing, then enter the pairing
status with mobile phone.
Low Battery Alarm
Low battery alarm when battery voltage is lower than 3.2V, remind 1 time every 3 minutes.
Earphones will not power off until the low batter is 3.0V. Alarming 3 to 4 times totally.
Earphones Charging
Put earphones into the charging box to charge automatically
Display of Charging Box Power
Closing/ opening the cover, or press the button of the charging box: Indicators displays the battery
level of the charging box for 5 seconds
Observe the indicators
Press the charging box button
Indicator Status
Earphones Mode Indicator Status
Power ON
White light on for 1 second
Power OFF
White light flashes 3 times, then light off
Bluetooth pairing
(mobile phone / other device)
Pairing status: white light flashes quickly
(flashing once in 0.5 seconds)
Connection successfully: white light flashes once every
5 seconds
Standby mode: white light flashes twice every 5 seconds
Incoming call
White light flashes quickly
Indicator Status
Earphones Mode
Indicator Status
Hang up the call
Hang up, the white light flashes 1 time
Call rejected
White light flashes quickly
Low battery alarm
White light flashes twice every 10 seconds
Earphone charging
When the earphone is charging, the indicator of earphone is off.
Charging box: the far left light shows the charging status of the
“L” earphone, the far right light shows the charging status of the
“R” earphone. Lights are always on during charging, and off
when fully charged.
Warning Tone
Power ON Power ON
Power OFF Power OFF
Pairing status
Pairing (Broadcast in double earphones)
Bluetooth pairing
(mobile phone / other device)
Connected (Broadcast in double earphones)
Bluetooth lost
Volume Adjustment “BEEP” when it reach the maximum
Switch ambient mode
Double touch the “L” to turn on the ambient Mode and prompt
"Ambient Mode"
When double touch the “L” to normal mode, it prompts "OFF"
Warning Tone
Switch ANC mode
Earphones prompt "ANC ON" when turn on ANC mode manually
(double touch “L” or long press “L” for 2 seconds).
Earphones prompt "OFF" when turn off ANC mode manually.
Incoming call
Android system: "incoming call" is played in a loop with a blank
time of 3 seconds.
Apple system: "Ringtone"
Call rejected
Call rejected
Reset
"Beep"
"Beep"
Low Battery Alarm
Voice assistant
Place of Origin: Shenzhen, China
Manufacturer: Shenzhen Shengyuan Tech Co., Ltd.
Address: Floor 19F-A, China Academy of Science and Technology Development Building,
No.9 Gaoxin South 1st Ave, Nanshan District, Shenzhen, China.
Tele: 400-0755-705
Website: www.linner.com.cn
Executive standard: Q/SYW 002-2017
Disconnected, pairing
Battery Low
Warranty Card
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.