Nokia TWS521 Micro Earbuds User Guide
Nokia Micro Earbuds Pro
TWS-521
Quick Start Guide
What’s in the box
- Charging case
- Earbuds (L/R)
- Ear tips (S/M/L)
- USB Type-C cable
- Quick start guide
Product Overview
Charging case:
- Charging contacts (RI
- Charging contacts (LI
- Charging case button
- Battery status LEDs
- USB Type-C port
Earbuds
| 6 Microphone 7 Touch control 8 Eartip |
Get started
Before using Nokia Micro Earbuds Pro, take off the film on the earbuds and place the earbuds back in the charging case. Then connect the USB Type-C cable to a power source to begin charging. Fully charge the earbuds and the charging case before the first use.
For optimal fit and audio performance, replace the ear tips with the size that best suits you.
Pair and connect with Bluetooth
Pairing with the device
Turning on and pairing:
When you take the earbuds out from the charging case, the earbuds will turn on and pair with each other automatically. When they have successfully paired, the LED indicator light of the right earbud will flash blue and red alternately and the earbuds are ready to connect with your Bluetooth° device.
Connecting with your
Bluetooth device:
Turn on Bluetooth in your device and choose “Nokia TWS-521” from the Bluetooth menu to connect.
During the connection process, the LED indicator light on the right earbud will flash blue and red alternately.
The LED indicator lights of the earbuds will flash blue every 10 seconds when they are successfully connected via Bluetooth.
After the initial pairing, the earbuds will automatically connect with your Bluetooth device whenever taken out of the charging case.
The earbuds will automatically power off if there is no Bluetooth connection within 5 minutes.
Using your earbuds
Touch control
Additional controls
Use a single earbud:
You can use either left or right bud as a mono Bluetooth headset after initial pairing.
Reset to the original settings:
i) Put both buds into the charging case.
ii) Press each of the buds 4 times rapidly.
iii) The indicator will turn purple and it is now reset.
Product and safety information
Remote control functions may vary depending on the model of your device and application.
Soundtrack instructions do not respond to iOS devices. Since devices with Bluetooth wireless technology communicate using radio waves, they do not need to be in direct line of sight. Bluetooth devices must, however, be within 10 meters (33 feet) of each other, although the connection may be subject to interference from obstructions such as walls or from other electronic devices. Frequency Band:
2402-2480Mhz
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Maximum Radio Frequency Power: -6-+4dBm
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For your safety
Switch the device off when a Bluetooth headset use is not allowed or when it may cause interference or danger, for example, in aircraft, in hospitals, or near medical equipment, fuel, chemicals, or blasting areas. Obey all instructions in restricted areas.
All wireless devices may be susceptible to interference, which could affect performance.
Use only batteries, chargers, and other accessories approved by HMD Global Oy for use with this device. Do not connect incompatible products.
To prevent possible hearing damage, do not listen at high volume levels for long periods.
Warning: When you use the headset, your ability to hear outside sounds may be affected. Do not use the headset where it can endanger your safety.
Your device and its accessories are not toys. They may contain small parts. Keep them out of the reach of small children.
Take care of your device
Handle your device with care. The following suggestions help you keep your device operational.
– Keep the device dry. Precipitation, humidity, and all types of liquids or moisture can contain minerals that corrode electronic circuits.
– Do not use or store the device in dusty or dirty areas.
– Do not store the device in high temperatures. High temperatures may damage the device or battery.
– Do not store the device in cold temperatures. When the device warms to its normal temperature, moisture can form inside the device and damage it.
– Do not open the device other than as instructed in the user guide.
– Do not drop, knock, or shake the device or the battery. Rough handling can break it.
– Only use a soft, clean, dry cloth to clean the surface of the device.
– Do not paint the device. Paint can prevent proper operation.
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. Any changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
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.
The device has been evaluated to meet general RF exposure requirements. The device can be used in portable exposure conditions without restriction
IC Caution:
RSS-Gen Issue 5 2019″&”CNR-Gen 5 2019:
This device complies with Industry Canada licence-exempt RSS standard(s).
Operation is subject to the following two conditions: (1) This device may not cause interference, and (2) This device must accept any interference, including interference that
may cause undesired operation of the device.
The device should be installed and used within a distance of 5mm between the radiator and the body.