SODLK T18
SODLK T18 Portable Wireless Bluetooth Speaker User Manual
Model: T18
Introduction
Thank you for purchasing the SODLK T18 Portable Wireless Bluetooth Speaker. This manual provides detailed instructions on how to set up, operate, and maintain your speaker to ensure optimal performance and longevity. Please read this manual thoroughly before using the product and retain it for future reference.
Safety Information
To ensure safe operation and prevent damage, please observe the following precautions:
- Do not expose the speaker to extreme temperatures or direct sunlight for prolonged periods.
- Keep the speaker away from heat sources, such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
- Do not disassemble, repair, or modify the speaker yourself. Refer all servicing to qualified service personnel.
- Ensure all ports are securely closed when exposing the speaker to water to maintain its IPX7 waterproof rating.
- Use only the charging cable provided or a certified equivalent.
- Avoid dropping or subjecting the speaker to strong impacts.
- Clean only with a dry cloth. Do not use liquid cleaners or aerosol cleaners.
Package Contents
Please check the package for the following items:
- SODLK T18 Portable Wireless Bluetooth Speaker
- 3.5mm Audio Cable
- Power Cable (USB-C to USB-A)
- User Manual (this document)
Product Overview
The SODLK T18 speaker is designed for powerful audio performance and durability, featuring an 80W output, IPX7 waterproofing, and dynamic LED lights. Below is an overview of its components and features.

Figure 1: The SODLK T18 Bluetooth Speaker, demonstrating its IPX7 waterproof capability with water splashing around its robust black casing and illuminated end panels.
Key Features:
- 80W Powerful Sound: Equipped with two middle-high frequency tweeters, one neodymium woofer, and two passive radiators for rich, clear sound and deep bass.
- IPX7 Waterproof: Fully submersible up to 1 meter for 30 minutes, making it ideal for outdoor and pool environments.
- True Wireless Stereo (TWS): Pair two T18 speakers for an enhanced stereo sound experience.
- Dynamic LED Lights: Integrated mixed-color lights that can sync with music, elevating your party atmosphere.
- Emergency Power Bank: Built-in functionality to charge your mobile devices via USB.
- Multiple Playback Modes: Supports Bluetooth, AUX input, TF card, and USB flash drive playback.
- Built-in Microphone: For hands-free calling.
Controls and Ports:
Familiarize yourself with the buttons and ports on your speaker:
- Power Button: Press and hold to power on/off.
- Bluetooth Button: Press to enter Bluetooth pairing mode.
- M (Mode) Button: Switch between Bluetooth, AUX, TF Card, and USB modes.
- EQ Button: Cycle through different equalizer presets.
- Play/Pause Button: Play or pause music; answer/end calls.
- Volume Down (-): Decrease volume; long press for previous track.
- Volume Up (+): Increase volume; long press for next track.
- USB-A Port: For USB flash drive playback and power bank function.
- USB-C Charging Port: For charging the speaker.
- TF Card Slot: For TF/Micro SD card playback.
- AUX-in Port: For wired audio connection.
Setup
1. Charging the Speaker
Before first use, fully charge the speaker. Connect the provided USB-C cable to the speaker's charging port and the other end to a USB power adapter (not included) or a computer's USB port. The charging indicator light will show charging status and turn off when fully charged.
Battery Life: Approximately 12 hours of playback on a full charge (may vary with volume and light usage).
2. Powering On/Off
Press and hold the Power Button for 2-3 seconds to turn the speaker on or off. A sound prompt will indicate the power status.
3. Bluetooth Pairing
- Turn on the speaker. It will automatically enter Bluetooth pairing mode, indicated by a flashing blue LED light.
- On your device (smartphone, tablet, etc.), enable Bluetooth and search for available devices.
- Select "SODLK T18" from the list.
- Once successfully paired, the LED light will turn solid blue, and you will hear a confirmation sound.
- The speaker will automatically reconnect to the last paired device when powered on, if within range.
4. True Wireless Stereo (TWS) Pairing
TWS allows you to pair two SODLK T18 speakers together for a true stereo sound experience.

Figure 2: Two SODLK T18 speakers positioned to demonstrate TWS pairing, providing a wider and more immersive soundstage.
- Ensure both T18 speakers are powered on and not connected to any Bluetooth device.
- On one speaker (this will be the primary speaker), press the Bluetooth Button twice quickly. It will enter TWS pairing mode.
- The primary speaker will search for the secondary speaker. Once connected, you will hear a confirmation sound, and the LED lights on both speakers will indicate a successful TWS connection.
- Now, connect your device to the primary speaker via Bluetooth as described in "3. Bluetooth Pairing". Audio will play through both speakers in stereo.
- To disconnect TWS, press the Bluetooth Button twice quickly on either speaker.
Operating
1. Music Playback
- Bluetooth Mode: After successful pairing, open your music app and start playback.
- AUX Mode: Insert the 3.5mm audio cable into the speaker's AUX-in port and the other end into your audio device. The speaker will automatically switch to AUX mode.
- TF Card / USB Flash Drive Mode: Insert a TF card or USB flash drive (with supported audio files) into the respective port. The speaker will automatically detect and play music from the storage device. Press the M (Mode) Button to cycle through input sources if needed.
2. Controlling Playback
- Play/Pause: Press the Play/Pause Button.
- Volume Adjustment: Press the Volume Up (+) or Volume Down (-) buttons.
- Next Track: Long press the Volume Up (+) button.
- Previous Track: Long press the Volume Down (-) button.
3. EQ Modes
Press the EQ Button to cycle through different equalizer presets (e.g., Bass Boost, Vocal, Standard) to optimize sound for various music genres or listening preferences.
4. Light Modes
The speaker features dynamic LED lights. Press the Light Button (if available, or a combination of buttons) to cycle through different light patterns or turn the lights off. Refer to the button layout for specific light control.

Figure 3: The SODLK T18 speakers enhancing a social gathering with their vibrant, mixed-color light display.
5. Using as a Power Bank
The SODLK T18 can serve as an emergency power bank for your mobile devices.

Figure 4: The SODLK T18 speaker providing emergency power to a smartphone, ensuring your devices stay charged on the go.
Connect your device's charging cable to the USB-A output port on the speaker. The speaker will begin charging your device. Note that using this feature will consume the speaker's battery life.
6. Hands-Free Calling
When connected via Bluetooth, you can use the speaker for hands-free calls:
- Answer Call: Press the Play/Pause Button once.
- End Call: Press the Play/Pause Button once during a call.
- Reject Call: Press and hold the Play/Pause Button for 2 seconds.
Maintenance
- Cleaning: Wipe the speaker with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners. Ensure all port covers are sealed before cleaning with a damp cloth.
- Storage: Store the speaker in a cool, dry place away from direct sunlight and extreme temperatures. If storing for a long period, charge the battery to about 50% every few months to maintain battery health.
- Waterproof Care: While IPX7 rated, always ensure the rubber flap covering the charging and input ports is securely closed before exposing the speaker to water. After exposure to chlorinated or saltwater, rinse the speaker with fresh water and dry thoroughly before charging.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not turn on. | Low battery; Power button not pressed long enough. | Charge the speaker; Press and hold the Power button for 2-3 seconds. |
| Cannot pair via Bluetooth. | Speaker not in pairing mode; Device Bluetooth off; Speaker already connected to another device; Too far from device. | Ensure speaker is flashing blue; Turn on device Bluetooth; Disconnect from other devices; Move speaker closer to device (within 10 meters). |
| No sound. | Volume too low; Incorrect input mode; Audio cable not fully inserted. | Increase volume on speaker and device; Press 'M' button to select correct mode; Ensure cables are fully inserted. |
| TWS pairing failed. | Speakers too far apart; One speaker already paired to a device. | Ensure speakers are close; Disconnect both speakers from any Bluetooth devices before TWS pairing. |
| Charging connected device is slow or not working. | Speaker battery low; Cable issue; Device drawing too much power. | Ensure speaker is sufficiently charged; Try a different USB cable; Some devices may not be compatible or require more power than the speaker can provide. |
Specifications
| Feature | Detail |
|---|---|
| Model Name | T18 |
| Brand | SODLK |
| Speaker Type | Outdoor, Portable |
| Connectivity Technology | Bluetooth, Auxiliary, USB |
| Wireless Communication | Bluetooth |
| Bluetooth Range | Up to 10 meters (33 feet) |
| Speaker Maximum Output Power | 80 Watts |
| Water Resistance Level | IPX7 (Waterproof) |
| Battery Life | Up to 12 Hours |
| Power Source | Battery Powered (4 Lithium Ion batteries included) |
| Product Dimensions (D x W x H) | 3.95"D x 8.66"W x 3.95"H |
| Item Weight | 1140 Grams (2.51 pounds) |
| Included Components | 3.5mm Audio Cable, Power Cable |
| Microphone | 1 (Built-in) |
| Control Method | Touch Buttons |

Figure 5: Detailed dimensions of the SODLK T18 speaker, illustrating its compact and portable size.
Warranty and Support
The SODLK T18 Portable Wireless Bluetooth Speaker comes with a Limited Warranty. Please refer to the warranty card included in your package for specific terms and conditions. For technical support, troubleshooting assistance, or warranty claims, please contact SODLK customer service through the retailer where you purchased the product or visit the official SODLK website.
Manufacturer: SODLK
Model Number: T18
UPC: 762715554291
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