SOUND by SWEDEN NERO-TX PRO True Wireless Headphones User Manual

SOUND by SWEDEN NERO-TX PRO True Wireless Headphones

Support and warranty

We at Sound by Sweden hope that you will be pleased with your new NERO-TX PRO. If you have any questions concerning our products you can reach our customer support team at: [email protected]
We provide one-year warranty on this product from the date of purchase
(see special terms regarding wearing parts at soundbysweden.com). The warranty applies in countries where there is a reseller or
representative appointed and approved by Sound by Sweden AB. The warranty covers demonstrable material and manufacturing faults. This warranty does not restrict the rights of the consumer mandated under applicable laws. If you would like to make use of this warranty, then please contact the point of purchase in the first instance.
The warranty does not cover:

• faults caused by wear and tear, accidents, drops, falls or other external mechanical impacts caused by careless handling.
• changes to battery capacity as a result of age.
• unauthorized modifications or repairs performed by the user.

Quick start

1. Charge your NERO-TX PRO in the charging box Powermag© until the LED light on the earphone turns off. The LED will light up white during the charging process.
2. Activate Bluetooth® on the transmitting device (e.g. smartphone).
3. Take out both earphones from the charging box. They will then begin automatically searching for a device to pair with. When the earphones are searching for a device, the LED will flashes white and you will hear the voice prompt “pairing”.
4. Connect the earphones by selecting NERO-TX PRO from the list of available Bluetooth devices on the transmitting device.
   NB! Charge the charging box by connecting the supplied charging cable to the USB-C port. The larger USB-A port (marked OUT) port is for outgoing current only. Read more in the section entitled Powermag©.

Comfort and fit

In order to ensure optimal comfort and fit it is important that you choose the right size of earphone tips. Tips that are too small for your ear canal will result in weak bass and may allow ambient noise to disturb the sound experience. Tips which are too big may prove uncomfortable to wear over time.
It is also important to position the earphones correctly in your ears. Earphone positioning affects both your audio experience and wearing comfort. Begin by placing the earphone with the cushion placed downwards and then twist it 90 degrees into the right position as shown below.

Noise cancelling & Transparency

NERO-TX PRO has 3 modes to filter out disturbing ambient noise. To switch between these modes, hold down the button on the left earphone (L) until you hear:

1. ”Transparency mode” (listening) where you filter out disturbing ambient noise but at the same time let through and amplify conversation sound, so you can communicate with your surroundings.
2. ”Noise cancelling on” where you filter out disturbing ambient noise such as fan noise, traffic etc.
3. ”Noise cancelling off” where you filter out disturbing ambient noise only by passive noise reduction. To get the best possible effect in this mode, we recommend using the included Comfort Foam Tips©.

It is important to choose the right size of eartips to get maximum performance in the noise reduction mode. The technology is based on the fact that you must have a certain air pressure inside the ear, which is achieved through a tight connection between the eartips and the ear canal.
All 3 modes can be activated on the earphones even if you do not use them for music or calls.
NB! Do not use noise cancelling in demanding environments attention to sounds around for example in traffic environments.

Button functions

Buttons functions on the left earphone (L):

• 1 x answer/end a call.
• 1 x start/pause sound and video.
• 2 x skip to the next track.
• 3 x increase the volume.
• Press the button for two seconds to activate ”Noise cancelling on”, ”Transparency mode” or ”Noise cancelling off”.
• Press the button for three seconds to turn the earphone on or off.

Button functions on the right earphone (R):

• 1 x answer/end a call.
• 1 x start/pause sound and video.
• 2 x go back to the previous track.
• 3 x decrease the volume.
• Press the button for two seconds to activate voice assistance.
• Press the button for three seconds to turn the earphone on or off.

Powermag©

The accompanying storage and charging case, called Powermag©, contains a powerful battery that can recharge the earphones up to 16 times, giving a total play time of up to 100 hours.

The charging case also has a power output function via the USB-A connection (marked OUT), which means that it can also double as a powerbank for other devices such as your smartphone. You can make use of this function by connecting a USB cable to the USB-A port on the charging box and to your smartphone (charging will start automatically). When this function is active a white LED will light up (above the USB-A port).

NB: Only charge products that have a power input of 5 Volts.

When the battery level of the Powermag© becomes low, the LED light will start flashing white. Charge it by connecting the charging cable supplied. The LED will flash white during the charging process. The LED will shine with a solid white light when the Powermag is fully recharged.

NB! It is important that you connect the supplied charging cable to the smaller USB-C input and not to the larger USB-A connection. This connection is only for outgoing current.

To protect the USB ports on the charging box, we recommend that you closes the silicone cover whenever the ports are not being used.

LED and voice indicators

NERO-TX PRO uses voice and LED indicators in order to indicate its current operational mode.

Voice indicators:

1. When the earphone starts up you´ll hear the voice prompt: ”Power on”.
2. When the earphone is searching for a device to pair with you´ll hear the voice prompt: “Pairing”.
3. When the earphone connects to another device you´ll hear the voice prompt: “NERO-TX connected”.
4. When the battery level reaches less than 10% it will warn the user by saying: “Battery low”.
5.  When the earphone switches off you´ll hear the voice prompt: “Power off”.
6. When the noise cancelling mode is being activated you´ll hear the voice prompt: ”Noise cancelling on”.
7. When the transparency mode is being activated you´ll hear the voice prompt: ”Transparancy mode”.
8. When the passive noise cancelling mode is being activated you´ll hear the voice prompt: ”Noise cancelling off”.

LED light on the earphones:

1. LED flashes white = no device connected.
2. LED flashes white = searching for device.
3. LED flashes white = battery level is less than 10%.
4. LED shines solid white = battery in earphone is recharged (when earphones are in charging case).

LED light on the charging case:

1. LED flashes white when the charging case is being charged.
2. LED flashes white when the earphones are being charged.
3. LED flashes white when the Powerbank is charging device via USB-A.
4. LED shines solid white when charging case is fully recharged.

FCC STATMENT

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 requirement. The device can be used in portable exposure condition without restriction

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