1. Introduction
Thank you for purchasing the TIMU S11 Portable Bluetooth Speaker. This manual provides essential information for setting up, operating, and maintaining your device. Please read it carefully before use to ensure optimal performance and longevity of your speaker.
2. Package Contents
- TIMU S11 Portable Bluetooth Speaker
- USB-C Charging Cable
- User Manual
3. Product Overview
The TIMU S11 speaker features a robust design with intuitive controls and multiple connectivity options. Familiarize yourself with the speaker's layout:

Image: Front view of the TIMU S11 speaker, highlighting its stereo sound capabilities with visible speaker cones.
Controls and Ports:
- Power Button: Press and hold to turn on/off.
- Volume Up (+): Increase volume.
- Volume Down (-): Decrease volume.
- Play/Pause Button: Play or pause audio.
- Mode Button: Switch between Bluetooth, AUX, TF Card, and USB-Audio modes.
- USB-C Port: For charging the speaker.
- AUX-in Port: For wired audio connection.
- TF Card Slot: For playing music directly from a MicroSD card.

Image: The TIMU S11 speaker displaying its control panel and indicating support for Bluetooth, AUX, TF card, and USB connections.
4. Setup
4.1 Charging the Speaker
- Connect the provided USB-C cable to the speaker's charging port.
- Connect the other end of the cable to a USB power adapter (not included) or a computer's USB port.
- The charging indicator light will illuminate. It takes approximately 3 hours for a full charge.
- Once fully charged, the indicator light will change or turn off.
A full charge provides up to 30 hours of playtime under specific conditions (30% volume, lighting effects off).

Image: The TIMU S11 speaker with an overlay indicating 30 hours of playtime and Type-C fast charging. A note specifies that this value requires volume at 30% and lighting effects off.
4.2 Powering On/Off
- To power on, press and hold the Power button until you hear an audible prompt and the indicator lights turn on.
- To power off, press and hold the Power button again until you hear an audible prompt and the indicator lights turn off.
5. Operating Instructions
5.1 Bluetooth Pairing
- Ensure the speaker is powered on and in Bluetooth pairing mode (indicator light will flash).
- On your device (smartphone, tablet, etc.), enable Bluetooth and search for available devices.
- Select "TIMU S11" from the list of devices.
- Once connected, the speaker will emit an audible confirmation, and the indicator light will become solid.
5.2 Basic Controls
- Play/Pause: Short press the Play/Pause button.
- Volume Up: Short press the '+' button.
- Volume Down: Short press the '-' button.
- Next Track: Long press the '+' button.
- Previous Track: Long press the '-' button.
5.3 TWS (True Wireless Stereo) Pairing
To achieve a stereo sound experience, you can pair two TIMU S11 speakers together:
- Ensure both TIMU S11 speakers are powered on and not connected to any other Bluetooth device.
- On one speaker (this will be the primary speaker), press and hold the TWS pairing button (refer to product diagram for exact button, often indicated by a chain link or infinity symbol).
- The speakers will attempt to connect to each other. Once successfully paired, you will hear an audible confirmation.
- Now, connect your device to the primary speaker via Bluetooth as described in section 5.1. Both speakers will play audio in stereo.

Image: Two TIMU S11 speakers connected wirelessly to a laptop, demonstrating TWS pairing for immersive stereo audio.
5.4 Multiple Connection Methods
The TIMU S11 supports various audio input methods:
- Bluetooth (BT): Wireless connection to compatible devices.
- AUX: Connect via a 3.5mm audio cable to devices without Bluetooth.
- TF Card: Insert a MicroSD card with music files for direct playback.
- USB-Audio: Connect via USB cable to a computer for audio playback.
Use the Mode button to switch between these input sources.
6. Maintenance
6.1 Waterproof Information (IPX7)
The TIMU S11 speaker is IPX7 waterproof, meaning it can be submerged in water up to 1 meter (3 feet) for up to 30 minutes. This makes it suitable for use by the pool, at the beach, or in the shower.
- Ensure all port covers are securely closed before exposing the speaker to water.
- Do not expose the speaker to saltwater or other chemicals, as this may damage the device.
- After exposure to water, wipe the speaker dry with a soft cloth before charging.

Image: The TIMU S11 speaker submerged in water, demonstrating its IPX7 waterproof capability.
6.2 Cleaning and Storage
- Clean the speaker with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Store the speaker in a cool, dry place away from direct sunlight and extreme temperatures.
- If not used for an extended period, charge the speaker at least once every three months to maintain battery health.
7. Specifications
| Feature | Specification |
|---|---|
| Model Name | S11 |
| Bluetooth Version | 5.4 |
| Speaker Output Power | 30 Watts |
| Connectivity Technology | Bluetooth, AUX, TF Card, USB-Audio |
| Audio Output Mode | Stereo (2.0 channels) |
| Waterproof Rating | IPX7 |
| Bluetooth Range | Up to 20 meters |
| Battery Capacity | 4000 mAh |
| Battery Life | Up to 30 hours (at 30% volume, lights off) |
| Charging Time | Approximately 3 hours |
| Speaker Driver Size | 60 Millimeters |
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not turn on. | Low battery. | Charge the speaker for at least 30 minutes. |
| Cannot pair via Bluetooth. | Speaker not in pairing mode; device Bluetooth off; too far from device. | Ensure speaker is in pairing mode. Turn device Bluetooth off and on. Move speaker closer to device (within 20m). |
| No sound. | Volume too low; incorrect input mode; device not playing. | Increase speaker and device volume. Press Mode button to select correct input. Ensure audio is playing on your device. |
| TWS pairing fails. | Speakers already connected to other devices; too far apart. | Disconnect both speakers from any Bluetooth devices. Ensure they are close to each other during TWS pairing. |
| Poor sound quality. | Low battery; interference; device audio quality. | Charge the speaker. Move away from other electronic devices. Check audio source quality. |
9. Warranty and Support
TIMU products come with a limited warranty. For detailed warranty information or technical support, please refer to the warranty card included in your package or visit the official TIMU website. Please retain your proof of purchase for warranty claims.