Introduction
Thank you for purchasing the Bobtot Portable Bluetooth Speaker. This manual provides detailed instructions for setup, operation, and maintenance of your speaker. Please read it carefully before use to ensure optimal performance and longevity of your device.
What's in the Box
- Portable Bluetooth Speaker
- Type C Charging Cable
- User Manual

The package includes one Bobtot Portable Bluetooth Speaker, a Type-C charging cable for convenient power, and this user manual to guide you through its features and functions.
Product Overview
Familiarize yourself with the speaker's components and controls.

The Bobtot Portable Bluetooth Speaker features a compact, square design with a durable mesh fabric finish. The Bobtot logo is prominently displayed on the front.

On the top panel of the speaker, you will find the power button, mode button (M), volume down (<), and volume up (>) buttons. These controls allow you to manage playback, volume, and device functions.
Setup
Charging the Speaker
- Connect the Type-C charging cable to the speaker's charging port and the other end to a USB power adapter (not included).
- The LED indicator will illuminate during charging and turn off when fully charged.
- A full charge takes approximately 3 hours.
- Ensure the charging port cover is securely closed after charging to maintain IPX7 waterproof rating.
Power On/Off
- To power on, press and hold the power button until the LED indicator lights up.
- To power off, press and hold the power button until the LED indicator turns off.
Operating Instructions
Bluetooth Pairing
- Ensure the speaker is powered on and in Bluetooth pairing mode (LED indicator will flash blue).
- On your device (smartphone, tablet, laptop), enable Bluetooth and search for available devices.
- Select "Bobtot Sound Air" from the list of devices.
- Once paired, the LED indicator 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.

The speaker utilizes Bluetooth 5.3 technology for a fast and stable wireless connection, allowing seamless audio streaming from your compatible devices up to 33 feet away.
True Wireless Stereo (TWS) Pairing
- Ensure both Bobtot speakers are powered on and not connected to any other Bluetooth device.
- On one speaker, double-click the 'M' (Mode) button. It will enter TWS pairing mode.
- The two speakers will automatically connect to each other. Once connected, you will hear a confirmation sound, and the LED indicator on the main speaker will flash blue, while the secondary speaker's LED will be solid blue.
- Now, connect your device to the main speaker via Bluetooth as described in the 'Bluetooth Pairing' section.
- To disconnect TWS, double-click the 'M' button on either speaker.

Enhance your audio experience by pairing two Bobtot speakers together using the True Wireless Stereo (TWS) function, creating a wider and more immersive stereo soundstage.
Hands-Free Calling
- When connected to your phone via Bluetooth, the built-in microphone allows for hands-free calls.
- Press the Power button once to answer an incoming call.
- Press the Power button once again to end a call.
- Press and hold the Power button to reject an incoming call.

The integrated microphone allows for convenient hands-free calling, making it easy to answer or make calls without needing to pick up your phone.
Volume Control
- Press the '>' button to increase volume.
- Press the '<' button to decrease volume.
Playback Control
- Press the Power button once to play or pause music.
- Press and hold the '>' button for the next track.
- Press and hold the '<' button for the previous track.
Maintenance
- Cleaning: Wipe the speaker with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners.
- Water Resistance: The speaker is IPX7 waterproof. Ensure the charging port cover is sealed tightly before exposing it to water. Do not submerge the speaker for extended periods or in depths greater than 1 meter.
- Storage: Store the speaker in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: To prolong battery life, fully charge the speaker before first use and at least once every three months if not used regularly. Avoid completely draining the battery.

With an IPX7 waterproof rating, this speaker is designed to withstand splashes, rain, and even temporary submersion, making it ideal for outdoor and wet environments. Always ensure the charging port cover is sealed.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not power on. | Low battery. | Charge the speaker fully. |
| Cannot pair with Bluetooth device. | Speaker is not in pairing mode or too far from device. | Ensure speaker is in pairing mode (flashing blue LED). Move speaker closer to your device (within 33 feet). Turn off and on Bluetooth on your device. |
| No sound or low volume. | Volume too low on speaker or connected device. | Increase volume on both the speaker and your connected device. |
| Sound distortion. | Volume too high or low battery. | Decrease volume. Charge the speaker. |
| TWS pairing failed. | Speakers are too far apart or already connected to another device. | Ensure both speakers are within close proximity and not connected to any other Bluetooth device. Reset both speakers and try TWS pairing again. |
Specifications
| Feature | Detail |
|---|---|
| Model Name | Bobtot Sound Air (ET35) |
| Bluetooth Version | 5.3 |
| Wireless Range | Up to 33 feet (10 meters) |
| Speaker Output Power | 10 Watts |
| Battery Capacity | 1200 mAh |
| Playtime | Up to 16 hours (varies by volume and content) |
| Charging Time | Approximately 3 hours |
| Waterproof Rating | IPX7 |
| Built-in Microphone | Yes |
| TWS Function | Yes |
| Dimensions (D x W x H) | 3.74" x 3.74" x 1.77" (9.5cm x 9.5cm x 4.5cm) |
| Weight | 0.42 pounds (195 grams) |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
Warranty and Support
Warranty Information
The Bobtot Portable Bluetooth Speaker comes with a limited warranty. Please refer to the warranty card included in your package or visit the official Bobtot website for detailed warranty terms and conditions.
Customer Support
For any questions, technical assistance, or support, please contact Bobtot customer service through the following channels:
- Website: Visit the Bobtot Store on Amazon
- User Guide (PDF): Download User Guide





