SCHWAIGER KH21BTS TWS Earphones with Bluetooth Speaker User Guide

June 12, 2024
Schwaiger

SCHWAIGER logo USER GUIDE AND SAFETY INSTRUCTIONS
TWS EARPHONES WITH BLUETOOTH® SPEAKER
User Guide

GENERAL

Read the user guide and keep it in a safe place.
Congratulations and thank you for purchasing this Schwaiger Product.
This user manual is an integral part of this product. It contains important information on commissioning and handling.
This user manual is intended to assist you in using the product. Read through the instructions for use carefully. Store this guide safely throughout the product’s entire service life and pass it on to any subsequent users or owners. Check that the supplied package is complete and ensure that none of the parts are defective or damaged.

INTENDED USE

The product consists of two wireless in-ear headphones and a charging case, which can also be used as a wireless speaker. It is used exclusively for the playback of audio files that are played via Bluetooth® . In connection with a Bluetooth® -enabled mobile phone, the in-ear headphones also have a hands-free function.
The product is intended for private use only and is not suitable for commercial use.
Only use the product as described in this user manual. Any other use is considered im-proper and may result in property damage.

PACKAGE CONTENTS

SCHWAIGER KH21BTS TWS Earphones with Bluetooth Speaker -
wireless

Keys & Components

1 Charging case 7 TWS earphones
2 ON/OFF button 8 Touch control button
3 Status LED 9 Battery indicator case
4 Type C charging socket 10 Battery indicator earphone
5 Carabiner clip 11 Charging contacts
6 Speaker 12 USB Type C charging cable

General safety and warning instructions
WARNING!
Risk of electric shock!
Faulty electrical installation or excessive mains voltage can lead to electric shock.

  • If you use a USB charger, only connect it if the mains voltage of the socket matches the specification on the type plate.
  • To charge the installed Li-ion battery, use only power supplies that comply with the SELV standard according to IEC 61558-2-6 or IEC 61347-2-13 or ES1 / IEC 62368-1 according to IEC 62368-3.
  • Do not operate the product if it has visible damage or the USB Type C charging cable is defective.
  • Do not open the housing but entrust the repair to specialists. Contact a specialist workshop for this purpose. Liability and warranty claims are excluded in the event of repairs carried out independently, improper connection or incorrect operation.
  • Only parts that correspond to the original device data may be used for repairs. This product contains electrical and mechanical parts which are essential for protection against sources of danger.
  • Do not immerse the product or the USB Type C charging cable in water or other liquids.
  • Never touch the USB plug with wet hands.
  • Never pull the USB plug out of the charging socket by the USB charging cable, but always hold the USB plug.
  • Never use the USB Type C charging cable as a carrying handle.
  • Keep the product and the USB Type C charging cable away from open flames and hot surfaces.
  • Route the USB Type C charging cable so that it does not become a tripping hazard.
  • Do not bend the USB Type C charging cable or place it over sharp edges.
  • Never operate the product in wet areas or in the rain.
  • Do not expose the product to rain or extreme weather conditions e.g., sub-zero temperatures, hail, extreme heat.
  • Never place the product in such a way that it can fall into water.
  • Charge the product indoors.
  • Never reach for an electrical device if it has fallen into water. In such a case, immediately pull the USB charger out of the charging socket.
  • Make sure that no liquid gets into the product and, if necessary, dry the product thoroughly before using it again.
  • Ensure that children do not insert any objects into the product.
  • Keep the product at least 20 cm away from pacemakers and other medical devices. Radio waves can affect the function of pacemakers and other medical devices.
  • When you are not using the product, cleaning it, or if interference occurs, always turn off the product and disconnect the USB Type C charging cable from the charging port.

WARNING!
Hazards for children and persons with reduced physical, sensory or mental abilities (for example, partially disabled persons, elderly persons with reduced physical and mental abilities) or lack of experience and knowledge (for example, older children).

  • This product can be used by children aged from eight years and above and persons with reduced physical, sensory, or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the product in a safe way and understand the hazards involved. Children must not play with the product. Cleaning and user maintenance must not be carried out by children without supervision.
  • Keep children younger than eight years away from the product and the connecting cable.
  • Do not leave the product unattended during operation.
  • Do not allow children to play with the packaging film. Children can get caught in it while playing and suffocate.

WARNING!
Fire hazard!
Improper handling of the product and battery may cause an explosion or fire.

  • The battery is permanently installed in the case; it cannot be replaced.
  • Keep the product away from water, other liquids, open flames, and hot surfaces.
  • Do not cover the product and the USB Type C charging cable with objects or clothing.
  • Do not place open fire sources, such as lighted candles, on or near the product.
  • Keep a distance of at least 5 cm from easily flammable materials.
  • Charge the battery of the device regularly, even if you do not use it for a longer period of time (about every 3 months). Otherwise, the battery may become deeply discharged and permanently unusable.
  • Due to the battery technology used, no previous discharge of the battery is necessary during the charging process, so it can be recharged regardless of the charge status.
  • Place the product on a surface that is not sensitive to heat during the charging process. Slight heating during charging is normal.
  • Leaking or damaged batteries can cause burns if they come into contact with the skin. Therefore, use suitable protective gloves in this case.
  • Liquids leaking from batteries are chemically very aggressive. Objects or surfaces that come into contact with them can be severely damaged.

CAUTION!
Risk of injury!
Continuous listening at high volume can cause hearing damage.

  • Prevent damage to health and avoid listening at high volume levels for long periods of time.
  • Always keep a certain distance from the product at high volumes and never keep your ears directly to the speaker.

IMPORTANT!
Risk of damage!
Improper handling of the product may result in damage to the product.

  • Never place the product on or near hot surfaces (e.g., stove tops).
  • Do not bring the product and the USB Type C charging cable into contact with hot parts.
  • Never expose the product to high temperature (heating, etc.) or weather (rain, etc.).
  • Never pour liquid into the product.
  • Never immerse the product in water for cleaning and do not use a steam cleaner for cleaning. The product may otherwise be damaged.
  • Do not use the product if the plastic components of the product are cracked or deformed. Replace damaged components only with suitable original spare parts.

OPERATION IN DETAIL

Remove the protective film from the charging contacts (11) on both headphones before using them for the first time.

It is recommended to fully charge the built-in battery of the charging cradle and the headphones before using the product for the first time.

Charging the product

Charging case

  • Place the charging case (1) on a surface that is not sensitive to heat.
  • Insert the Type C plug of the supplied USB Type C charging cable (12) into the Type C charging socket (4) of the product and the USB plug into a suitable USB charger or into an active USB socket (e.g., laptop, computer).
  • The battery indicator charging case (9) flashes green during the entire charging process, while the status LED (3) flashes red. The charging case (1) is fully charged after approx. 2 hours. The battery indicator charging case (9) then lights up green continuously, while the status LED (3) lights up red continuously.

When the charging case (1) is fully charged, the TWS earphones (7) can be charged approximately four to five times. The charging case (1) does not have to be switched on to charge the TWS earphones (7).
Charging earphones

  • Place both TWS earphones (7) in the charging case (1) according to the labeling. Make sure that the charging contacts (11) are positioned correctly. The charging process then starts immediately when the charging case (1) itself is sufficiently charged.
  • The battery indicator earphone (10) lights up red continuously during the charging process, while the battery indicator charging case (9) lights up green. The earphones are fully charged after approx. 45 minutes and the battery indicator earphone (10) goes out.

If the TWS earphones (7) emit a short beep at regular intervals during use, the battery of the earphones must be recharged via the charging case (1).

Switch product on/off

Switch charging case on/off

  • Slide the ON/OFF button (2) into position ON to switch on the charging case (1).
  • The status LED (3) briefly lights up blue and then starts to flash blue.
  • Slide the ON/OFF button (2) into position OFF to switch the charging case (1) off again.
  • The status LED (3) goes out.

Switch earphones on/off

  • The TWS earphones (7) switch on automatically as soon as they are removed from the charging case. Alternatively, press and hold the touch control button (8) for approx. 3 seconds.
  • The TWS earphones (7) also switch off automatically as soon as they are placed back in the charging case. Alternatively, press and hold the touch control button (8) for approx. 3 seconds.

If neither the charging case (1) nor the TWS earphones (7) are connected to a Bluetooth® enabled device, the product will switch to standby mode after a few minutes to save energy. Switch the charging case (1) or the TWS earphones (7) back on as described above to use them again.
Connect device via Bluetooth® The Bluetooth® function enables wireless reception of audio signals from an external, Bluetooth® -enabled audio output device. Make sure that the distance between the two devices does not exceed 10 meters.
You can connect either the charging case (1) or the TWS earphones (7) to your Bluetooth® -enabled audio output device.
Only one Bluetooth® device can be paired with the product at a time. However, speakers (6) and TWS earphones can be used independently.
To output the sound of your Bluetooth® -enabled audio output device (e.g., smartphone) wirelessly via the product, the two devices must first be connected to each other.
To connect to the speaker (6) of the charging case (1), proceed as follows:

  1. Switch on the charging case (1) as described above.
  2. The product automatically attempts to connect to the last audio output device paired via Bluetooth® . If this is not possible, the product remains in search mode.
  3. Turn on the Bluetooth® function on your external player and let your external player/smartphone search for Bluetooth® devices to pair the two devices. For more information, refer to the instruction manual of your external player.
  4. After the search, the „BS21BTS“ product should also be listed in the list of devices found.
  5. Select „BS21BTS“ and pair the two devices together.
  6. The pairing of the two devices is completed as soon as a beep sounds on the speaker.

You can now start audio playback on your external player/smartphone and listen to music through the speaker.
If you want to connect the TWS earphones (7) to your Bluetooth® -enabled external player, proceed as follows:

  1. Remove the TWS earphones (7) from the charging case (1). The TWS earphones (7) will turn on automatically.
  2. Thanks to the True Wireless Stereo (TWS) function of the earphones, the two TWS earphones (7) will automatically connect with each other.
  3. The product will also automatically try to connect to the last audio output device paired via Bluetooth® . If this is not possible, the product remains in search mode.
  4. Turn on the Bluetooth® function on your player and let your player/smartphone search for Bluetooth® devices to pair the two devices. For more information, refer to the instruction manual of your external player.
  5. After the search, the „KH21BTS“ product should also be listed in the list of devices found.
  6. Select „KH21BTS“ and pair the two devices together.
  7. The pairing of the two devices is completed as soon as the „Connected“ signal tone is heard from the earphones.

You can now start audio playback on your external player/smartphone.
If you disconnect the earphones via the settings on your external player/smartphone, you will hear the „Disconnect“ signal tone.

Control via the earphones

If you have successfully connected your Bluetooth® -enabled external player (smart-
phone) to the TWS earphones (7), you can also control the following functions directly with the TWS earphones (7).
Pause/resume playback

  • Pause the playback of tracks by pressing the touch control button (8) on the left or right earphone once.
  • To resume playback, press the touch control button (8) on the left or right earphone once again.

Skip titles

  • To skip to the next track during playback, press the touch control button (8) on the right earphone twice.
  • To skip back to the previous track, press the touch control button (8) on the left earphone twice.

Hands-free function

  • To answer an incoming call, press the touch control button (8) on the left or right earphone once.
  • To end a call, press the touch control button (8) on the left or right earphone once again.
  • To reject an incoming call, press and hold the touch control button (8) on the left or right earphone for approx. 2 seconds.

Carabiner clip
The charging case (1) has an integrated carabiner clip (5) on the left side of the housing, which can be used to hang the charging case (1) securely from suitable locations.
Battery indicators and status LED
The status LED (3), the battery indicator charging case (9) and the battery indicator earphone (10) can additionally display the following functions for easier operation:

Status LED flashes alternately red and blue| The charging case is switched on and is currently being charged
---|---
Battery indicator charging case lights green| As soon as the earphones are removed, the battery indicator shows the battery status of the charging case
Battery indicator earphone flas- hes alternately red and blue| The earphones are switched on but not yet connected to each other
Battery indicator earphones flashes blue| The earphones are successfully paired with a Bluetootha enabled device

Troubleshooting

The earphones do not switch on automatically
If the TWS earphones (7) do not turn on automatically when you remove them from the charging case (1), press and hold the touch control button (8) for about 3 seconds. If the earphones still do not switch on, check the battery charge of the earphones.
The earphones do not automatically connect to my smartphone If you were connected to another Bluetooth® enabled device after the last connection between TWS earphones (7) and your smartphone, both devices must be manually connected to each other again as described above.
The earphones have lost the connection to my smartphone Check that the Bluetooth® function on your smartphone is still switched on. Also check that the distance between the smartphone and the TWS earphones (7) is no more than 10 meters.
If the smartphone is not out of Bluetooth® range of the earphones for more than 3 minutes, the TWS earphones (7) will automatically reconnect with the smartphone as soon as it is back in range.

Technical Data

Item number KH21BTS
Connections lx USB Type C socket
Power supply 5 V ****, 500 mA
Battery Lithium-ion battery
Battery capacity 300 mAh (charging case) / 30 mAh (earphones)
Charging time approx. 2 h (charging case) approx. 45 min (earphones)
Operating time approx. 2 – 2,5 h
Bluetooth® version V5.0 (charging case speaker) / V5.1 (earphones)
Bluetooth® pairing name BS21BTS (charging case speaker) KH21BTS (earphones)
Bluetooth® range approx. 10 m
BluetootM band 2,402 – 2,480 GHz
Signal-to-noise ratio > 85 dB
Speaker output 2 W
Maximum transmission power 2 mW (headphones) / 2 mW (charging case)
Impedance 4 Ω
Audio frequency 20 Hz – 20 KHz
Color black
Dimensions (WxDxH) 137 x 22 x 46 mm

MAINTENANCE & CLEANING

IMPORTANT!
Short circuit hazard!
Water or other liquids entering the housing can cause a short circuit.

  • Never immerse the product in water or other liquids.
  • Make sure that no water or other liquids get into the housing.

IMPORTANT!
Risk of damage!
Improper handling of the product may result in damage to the product.

  • Do not use aggressive cleaning agents, brushes with metal or nylon bristles, or sharp or metallic cleaning objects such as knives, hard spatulas, and the like. These can damage the surfaces.
    1. Clean the product with a soft, dry cloth.
    2. If the product is stubbornly dirty, use a slightly damp cloth and a little mild detergent if necessary.
    3. Allow all parts to dry completely afterwards.

Storage
All parts must be completely dry before storage.

  • Always store the product in a dry place.
  • Store the product out of reach of children, securely closed and at a storage temperature between 5 °C and 20 °C (room temperature).

Simplified declaration of conformity as per the RED Directive
** Schwaiger GmbH hereby declares that the described radio system product complies with Directive 2014/53/EU and other directives applicable to the product. The complete EU declaration of conformity is available online at: http://konform.schwaiger.de
Disposal
Do not dispose of batteries or electric and electronic devices in the normal household waste. The consumer is legally obliged to return electrical and electronic devices and batteries that are at the end of their useful life to the point of sale or public collection points that have been set up for this purpose. Legislation in the country of use governs individual details regarding disposal. The symbol on the product, the user guide or the packaging indicates this legal requirement.
Disclaimer
Schwaiger GmbH does not accept any liability or warranty for damages that are sustained due to improper installation or mounting, improper use of the product or non-compliance with the safety instructions.
Manufacturer‘s information
Dear Customer, please contact our Technical Support if you need technical advice and your retailer is unable to help you.
Office Hours (Technical Support in German)**
Monday to Friday: 8:00 a.m. – 5:00 p.m.

SCHWAIGER logoKH21BTS 513
Schwaiger GmbH
Würzburger Straße 17
90579 Langenzenn
Hotline: +49 (0) 9101 702-299
www.schwaiger.de
[email protected]
BDA_KH21BTS_web_a

References

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