Introduction
Thank you for choosing the SCHWAIGER KH21BTS 513 True Wireless Stereo (TWS) Earbuds with an integrated Bluetooth speaker charging case. This manual provides essential information for the safe and efficient use of your device. Please read it carefully before use and keep it for future reference.
Package Contents
Ensure all items are present in the package:
- SCHWAIGER KH21BTS 513 TWS Earbuds (Left and Right)
- Charging Case with Integrated Bluetooth Speaker and Carabiner Clip
- USB Type-C Charging Cable
- User Manual

Product Overview
Familiarize yourself with the components of your SCHWAIGER KH21BTS 513 device.
Earbuds



Charging Case with Integrated Speaker



Setup
1. Charging the Device
Before first use, fully charge the charging case and earbuds.
- Connect the supplied USB Type-C charging cable to the charging port on the case and to a USB power source (e.g., computer, USB wall adapter).
- The LED indicators on the charging case will show the charging status.
- Place the earbuds into their respective slots in the charging case. They will begin charging automatically. The earbuds also have indicator lights.
- Once fully charged, disconnect the charging cable.

2. Pairing the Earbuds with Your Device
The earbuds use True Wireless Stereo (TWS) technology for a seamless audio experience.
- Open the charging case and remove both earbuds. They will automatically power on and attempt to pair with each other.
- On your smartphone, tablet, or other Bluetooth-enabled device, go to the Bluetooth settings.
- Search for new devices and select "SCHWAIGER KH21BTS 513" (or similar name) from the list.
- Once connected, you will hear a confirmation tone, and the earbud indicator lights will change (e.g., turn off or flash slowly).
3. Pairing the Integrated Bluetooth Speaker
The charging case features a separate Bluetooth speaker.
- Ensure the earbuds are either in the case (and not actively paired) or turned off.
- Locate the power button for the speaker on the charging case (refer to product diagrams if available). Press and hold to turn on the speaker and enter pairing mode.
- On your Bluetooth-enabled device, search for new devices and select the speaker's name (e.g., "SCHWAIGER Speaker" or similar).
- Once connected, the speaker will indicate successful pairing.
Operating Instructions
Earbud Controls (Touch Sensitive)
The earbuds feature touch controls for various functions. Specific functions may vary slightly; refer to the quick start guide for precise commands.
- Play/Pause: Single tap on either earbud.
- Next Track: Double tap on the right earbud.
- Previous Track: Double tap on the left earbud.
- Answer/End Call: Single tap on either earbud during an incoming call.
- Reject Call: Press and hold either earbud for 2 seconds during an incoming call.
- Activate Voice Assistant: Triple tap on either earbud (e.g., Siri, Google Assistant).

Integrated Speaker Operation
Once paired, the integrated speaker functions like any standard Bluetooth speaker.
- Power On/Off: Press and hold the speaker power button.
- Volume Control: Adjust volume directly from your connected device.
- Audio Playback: Control playback (play/pause, skip) from your connected device.
Making and Receiving Calls
The earbuds feature an integrated microphone for hands-free calling.
- Ensure earbuds are connected to your smartphone.
- Use the touch controls on the earbuds to answer, end, or reject calls as described above.
- Audio will be routed through the earbuds, and your voice will be picked up by the earbud microphone.
Maintenance
Proper maintenance ensures longevity and optimal performance.
- Cleaning: Use a soft, dry, lint-free cloth to clean the earbuds and charging case. Do not use abrasive cleaners or solvents.
- Storage: When not in use, store the earbuds in the charging case to protect them and keep them charged. Store in a cool, dry place away from direct sunlight and extreme temperatures.
- Water Resistance: The product is rated as waterproof. However, avoid prolonged submersion in water and ensure the charging port is dry before charging.
Troubleshooting
If you encounter issues, try the following solutions:
| Problem | Possible Solution |
|---|---|
| Earbuds not pairing with each other | Place both earbuds back into the charging case, close the lid, wait a few seconds, then open and remove them again. Ensure they are fully charged. |
| Earbuds not connecting to device | Ensure Bluetooth is enabled on your device. Forget the device in your Bluetooth settings and attempt to pair again. Ensure earbuds are charged. |
| No sound from earbuds/speaker | Check volume levels on both the earbuds/speaker and your connected device. Ensure the correct device is selected as the audio output. Recharge the device. |
| Charging case not charging | Ensure the USB Type-C cable is securely connected to both the case and the power source. Try a different cable or power adapter. |
| Speaker not pairing | Ensure the speaker is in pairing mode. Disconnect any other Bluetooth devices from your source device. |
Specifications
| Feature | Detail |
|---|---|
| Model Name | KH21BTS 513 |
| Brand | SCHWAIGER |
| Connectivity Technology | Wireless (Bluetooth) |
| Ear Placement | In-Ear |
| Control Method | Touch, Call Control |
| Special Features | Wireless, Built-in Microphone, Integrated Bluetooth Speaker in Charging Case |
| Water Resistance Level | Waterproof |
| Noise Cancellation | Active Noise Reduction |
| Compatible Devices | Smartphones, Laptops, Tablets, Smart Speakers |
| Material | Plastic |
| Color | Black |
| Package Dimensions | 17.3 x 6.4 x 2.8 cm |
| Weight | 120 g |
Safety Information
Please observe the following safety guidelines:
- Do not disassemble, repair, or modify the device.
- Keep the device away from extreme temperatures, humidity, and corrosive substances.
- Avoid listening at high volume levels for extended periods to prevent hearing damage.
- Keep out of reach of children and pets.
- Dispose of the device and its battery responsibly according to local regulations.
Warranty and Support
This product comes with a 2-year warranty from the date of purchase. For warranty claims or technical support, please contact SCHWAIGER customer service through the retailer where the product was purchased or visit the official SCHWAIGER website for contact information.





