1. Introduction
Thank you for choosing the EarFun Go Portable Bluetooth Speaker. This manual provides essential information for setting up, operating, and maintaining your device. Please read it thoroughly before use to ensure optimal performance and longevity.
What's in the Box:
- 1 x EarFun Go Wireless Speaker
- 1 x USB-C Cable
- 1 x User Manual
2. Product Overview
The EarFun Go is a compact and robust portable Bluetooth speaker designed for high-quality audio on the go. It features advanced sound technology, durable construction, and versatile connectivity options.

Figure 2.1: EarFun Go Portable Bluetooth Speaker (Front View)
Key Features:
- Superior Sound Quality: Equipped with dual high-performance drivers and advanced DSP chips for clear audio and enhanced bass.
- IPX7 Waterproof: Provides protection against spills, rain, snow, dust, and can withstand submersion in up to 1 meter of water for 30 minutes.
- Bluetooth 5.0 Connectivity: Ensures stable and instant pairing with compatible devices up to 100 feet (30 meters) away.
- 24-Hour Battery Life: A built-in high-capacity rechargeable battery provides extended playtime on a single charge.
- Compact and Portable Design: Its pocket-sized form factor and integrated strap make it ideal for travel and outdoor activities.
- True Wireless Stereo (TWS) Pairing: Connect two EarFun Go speakers for an immersive stereo sound experience.
- Built-in Microphone: Allows for hands-free speakerphone calls and access to digital assistants.

Figure 2.2: Internal view highlighting dual high-performance drivers.

Figure 2.3: Speaker demonstrating IPX7 waterproof capability.

Figure 2.4: Seamless Bluetooth 5.0 connection for wireless audio.

Figure 2.5: Enjoy music all day with 24-hour battery life.

Figure 2.6: Compact design with a convenient hang strap.
3. Setup
3.1 Powering On/Off
- To Power On: Press and hold the Power button (⏻) for 2 seconds. The blue indicator light will flash.
- To Power Off: Press and hold the Power button (⏻) for 2 seconds. The indicator light will turn off.
3.2 Bluetooth Pairing
- Ensure the speaker is powered on and the blue indicator light is flashing, indicating it's in pairing mode.
- Activate Bluetooth on your device (smartphone, tablet, laptop).
- Search for "EarFun Go" in your device's Bluetooth list and select it to connect.
- Once connected, the blue indicator light will remain solid.
3.3 True Wireless Stereo (TWS) Pairing (Optional)
To achieve a stereo sound experience, you can pair two EarFun Go speakers together:
- Power on both EarFun Go speakers.
- On one speaker (this will be the primary speaker), press and hold the Bluetooth button (✶) for 5 seconds until you hear a tone and the blue indicator light flashes rapidly.
- The two speakers will automatically connect to each other. Once connected, the primary speaker's blue indicator will flash slowly, and the secondary speaker's blue indicator will remain solid.
- Now, connect your device to the primary speaker via Bluetooth as described in section 3.2.
3.4 AUX Connection
For non-Bluetooth devices, you can use a 3.5mm AUX cable (not included) to connect to the speaker's auxiliary input port.
- Open the protective flap on the back of the speaker to reveal the ports.
- Connect one end of the 3.5mm AUX cable to your audio device and the other end to the AUX-in port on the EarFun Go speaker.
- The speaker will automatically switch to AUX mode.
4. Operating
4.1 Button Functions
The control buttons are located on the top surface of the speaker:

Figure 4.1: Button layout on the EarFun Go speaker.
- Power Button (⏻): Press and hold for 2 seconds to power on/off.
- Bluetooth Button (✶): Press to enter Bluetooth pairing mode. In TWS mode, press and hold for 5 seconds on the primary speaker to initiate TWS pairing.
- Play/Pause Button (▶▶): Press once to play or pause music. Press once to answer or end a call. Press and hold for 2 seconds to reject an incoming call. Double-press to activate your device's voice assistant (Siri, Google Now).
- Volume Down Button (-): Press once to decrease volume. Press and hold to skip to the previous track.
- Volume Up Button (+): Press once to increase volume. Press and hold to skip to the next track.
5. Maintenance
5.1 General Care
- Clean the speaker with a soft, damp cloth. Do not use harsh chemicals or abrasive materials.
- Ensure the protective flap covering the charging and AUX ports is securely closed when not in use, especially in wet environments.
- Avoid exposing the speaker to extreme temperatures or direct sunlight for prolonged periods.
5.2 Battery Charging
Charge the speaker using the provided USB-C cable. A full charge takes approximately 4 hours.
- Open the protective flap on the back of the speaker.
- Connect the USB-C cable to the charging port on the speaker and to a compatible USB power source.
- The charging indicator light will show charging status (refer to LED indicator section in full manual for details).
6. Troubleshooting
If you encounter issues with your EarFun Go speaker, please refer to the following common solutions:
| Problem | Solution |
|---|---|
| Speaker does not power on | Ensure the battery is charged. Connect to a power source using the USB-C cable. |
| Cannot pair with device via Bluetooth | Make sure the speaker is in pairing mode (flashing blue light). Turn off and on your device's Bluetooth. Clear previous pairings on your device. |
| No sound or low volume | Check volume levels on both the speaker and your connected device. Ensure the speaker is not muted. If using AUX, verify cable connection. |
| Poor sound quality or distortion | Move the speaker closer to your Bluetooth device. Ensure there are no obstructions. Reduce volume if distortion occurs at high levels. |
| TWS pairing fails | Ensure both speakers are EarFun Go models. Follow TWS pairing steps carefully, ensuring only one speaker is initially in pairing mode before initiating TWS. |
7. Technical Specifications
| Feature | Specification |
|---|---|
| Model Name | SP100B |
| Speaker Type | Outdoor |
| Special Features | DSP Technology, Wireless Stereo Pairing (TWS), USB Type-C Port, IPX7 Waterproof, 30 Meters Bluetooth Range, 24 Hours Playtime |
| Recommended Uses | For Smartphones or Tablets, Travel, Outdoor/Portable audio setups |
| Compatible Devices | Laptop, Smartphone, Tablet |
| Product Dimensions | 2.2"D x 2.2"W x 6.3"H (5.6cm D x 5.6cm W x 16cm H) |
| Item Weight | 14.1 ounces (400 Grams) |
| Water Resistance Level | IPX7 Waterproof |
| Maximum Range | 100 Feet (30 Meters) |
| Control Method | Voice, Buttons |
| Wireless Communication Technology | Bluetooth 5.0 |
| Power Source | Battery Powered (1 Lithium Ion battery included) |
| Battery Capacity | Up to 24 Hours Playtime |
| Charging Time | 4 Hours |
| Speaker Maximum Output Power | 12 Watts (2 x 6W Speakers) |
| Audio Output Mode | Stereo |
8. Warranty and Customer Support
The EarFun Go Portable Bluetooth Speaker comes with an 18-month manufacturer's warranty. Additionally, a 30-day no-questions-asked return policy is offered. For any product-related inquiries, technical support, or warranty claims, please contact EarFun customer service through their official website or the retailer where the product was purchased.





