Introduction
Thank you for purchasing the KTS-1266 Wireless Speaker. This portable Bluetooth speaker is designed to deliver powerful audio with dual 4-inch drivers, enhanced bass, and dynamic RGB party lights. It offers versatile connectivity options including Bluetooth, AUX, USB, TF card, and FM radio, making it ideal for various audio needs. Please read this manual carefully before operating the device to ensure proper use and to maximize its performance.
Package Contents
Please check the box for the following items:
- KTS-1266 Wireless Speaker
- USB Charging Cable
- User Manual (this document)

Image: The KTS-1266 speaker shown alongside its packaging box and the included USB charging cable, illustrating the typical contents of the product package.
Product Overview
The KTS-1266 speaker features a robust design with intuitive controls and vibrant RGB lighting. Familiarize yourself with the speaker's components:

Image: A direct front view of the KTS-1266 Wireless Speaker, highlighting its dual speaker grilles with active, colorful RGB party lights. The control panel is visible at the top.

Image: An angled perspective of the KTS-1266 Wireless Speaker, showcasing its side profile, integrated handle, and the illuminated RGB lights on the front speaker grilles.
Control Panel (Typical Layout)
While specific button labels may vary, common controls include:
- Power Button: To turn the speaker ON/OFF.
- Mode Button: To switch between Bluetooth, AUX, USB, TF Card, and FM Radio modes.
- Play/Pause Button: To play or pause audio.
- Previous/Volume Down Button: Short press for previous track, long press to decrease volume.
- Next/Volume Up Button: Short press for next track, long press to increase volume.
- RGB Light Button: To cycle through light modes or turn lights ON/OFF.
- TWS Button: For True Wireless Stereo pairing (if supported).
Ports
- USB Port: For USB flash drive playback.
- TF Card Slot: For Micro SD card playback.
- AUX Input: For connecting external audio devices via a 3.5mm audio cable.
- DC 5V Charging Port: For charging the speaker using the provided USB cable.
Setup
Charging the Speaker
Before first use, fully charge the speaker. Connect the supplied USB charging cable to the DC 5V charging port on the speaker and the other end to a USB power adapter (not included) or a computer's USB port. The charging indicator light will typically illuminate during charging and turn off or change color when fully charged. A full charge takes approximately 3-4 hours.
Powering On/Off
Press and hold the Power button for a few seconds to turn the speaker ON or OFF. You will hear an audible prompt indicating the power status.
Operating Instructions
Bluetooth Mode
- Turn on the speaker. It will automatically enter Bluetooth pairing mode, indicated by a flashing LED light and an audible prompt.
- Enable Bluetooth on your mobile device (smartphone, tablet, etc.).
- Search for "KTS-1266" in the list of available Bluetooth devices.
- Select "KTS-1266" to connect. Once connected, you will hear a confirmation sound, and the LED light will stop flashing.
- You can now play audio from your device through the speaker.
AUX Mode
Connect one end of a 3.5mm audio cable (not included) to the AUX input port on the speaker and the other end to the audio output jack of your external device (e.g., MP3 player, computer). The speaker will automatically switch to AUX mode, or you may need to press the Mode button to select AUX.
USB/TF Card Mode
Insert a USB flash drive or a TF (Micro SD) card into the respective port. The speaker will automatically detect the storage device and begin playing MP3 audio files. If it doesn't, press the Mode button to switch to USB or TF Card mode.
FM Radio Mode
Press the Mode button to switch to FM Radio mode. To auto-scan and save available stations, long press the Play/Pause button. Use the Previous/Next buttons to navigate between saved stations.
True Wireless Stereo (TWS) Function
The TWS function allows you to pair two KTS-1266 speakers together for a true stereo sound experience. (Requires two KTS-1266 speakers).
- Ensure both speakers are turned ON and in Bluetooth mode, but not connected to any device.
- On one of the speakers (this will be the primary speaker), long press the TWS button. You will hear a pairing sound.
- The two speakers will automatically connect to each other. Once paired, you will hear a confirmation sound.
- Now, connect your mobile device to the primary speaker via Bluetooth as described in the "Bluetooth Mode" section. Audio will play through both speakers in stereo.
RGB Party Light Control
Press the dedicated RGB Light button to cycle through different light modes or to turn the lights ON/OFF. Enjoy the dynamic visual effects that sync with your music.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the speaker. Do not use abrasive cleaners, waxes, or solvents.
- Storage: When not in use for extended periods, store the speaker in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Charge the speaker regularly, even if not in use.
- Water Resistance: This speaker is not waterproof. Avoid exposure to water or excessive moisture.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not turn on. | Battery is low or depleted. | Charge the speaker fully using the provided USB cable. |
| No sound. | Volume is too low; incorrect mode selected; device not connected. | Increase volume on both speaker and connected device. Ensure correct mode (Bluetooth, AUX, USB, TF) is selected. Reconnect Bluetooth device. |
| Bluetooth connection fails. | Speaker is too far from device; interference; speaker already connected to another device. | Ensure speaker and device are within 10 meters. Turn off other Bluetooth devices. Disconnect from previous device and re-pair. |
| Poor FM radio reception. | Weak signal; no antenna. | Move speaker to a location with better signal. Ensure USB cable is plugged in (it often acts as an antenna). Perform auto-scan again. |
| TWS pairing fails. | Speakers are too far apart; one speaker already connected to a device. | Ensure both speakers are close to each other and not connected to any other Bluetooth device before initiating TWS pairing. |
Specifications

Image: The KTS-1266 Wireless Speaker displayed with its key dimensions clearly marked: 37.5 cm in height, 18 cm in width, and 16.45 cm in depth.
| Feature | Detail |
|---|---|
| Model | KTS-1266 |
| Connectivity Technology | Bluetooth, Auxiliary, USB, Micro SD (TF Card) |
| Loudspeaker Specification | Dual 4-inch drivers, 10W x 2pc (20W total) |
| Audio Output Mode | Stereo |
| Battery Capacity | 2400mAh Rechargeable Li-battery |
| Product Dimensions (L x W x H) | 18 x 16.45 x 37.5 cm |
| Color | Black |
| Features | RGB Party Light, Bass Boost, TWS Function, FM Radio, MP3 Support |
Warranty and Support
This product is manufactured by Generic. For specific warranty information and support, please refer to the retailer or point of purchase. Keep your purchase receipt as proof of purchase for any warranty claims.
For further assistance or inquiries, please contact the seller or manufacturer through the platform where the product was purchased.

