HOCO HC4
Hoco HC4 Bella Sports Wireless Speaker
User Manual
1. Introduction
Thank you for purchasing the Hoco HC4 Bella Sports Wireless Speaker. This portable speaker is designed to deliver high-quality audio with versatile connectivity options, including Bluetooth, FM radio, TF card, U disk, and AUX input. Its compact and durable design makes it ideal for both indoor and outdoor use. Please read this manual carefully before using the product to ensure proper operation and to maximize its lifespan.
2. Safety Information
- Do not expose the speaker to extreme temperatures, direct sunlight, or high humidity.
- Avoid dropping or subjecting the speaker to strong impacts.
- Do not disassemble, repair, or modify the speaker yourself. Refer all servicing to qualified personnel.
- Keep the speaker away from water and other liquids to prevent electric shock or damage.
- Use only the specified charging cable and power adapter to charge the device.
- Clean the speaker with a soft, dry cloth. Do not use abrasive cleaners or solvents.
3. Product Overview
Familiarize yourself with the components of your Hoco HC4 speaker.


4. Setup
4.1 Charging the Speaker
Before first use, fully charge the speaker. The battery capacity is 1500mAh, and a full charge takes approximately 2 hours.
- Connect the charging 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 during charging and turn off when fully charged.
4.2 Powering On/Off
- To power on, press and hold the Power button until you hear an audible prompt.
- To power off, press and hold the Power button again until you hear an audible prompt.
5. Operating Instructions
5.1 Bluetooth Mode
The speaker supports Bluetooth V5.0 for stable wireless connection.
- Ensure the speaker is powered on and in Bluetooth pairing mode (indicated by a flashing LED).
- On your device (smartphone, tablet, laptop), enable Bluetooth and search for available devices.
- Select "Hoco HC4" from the list of devices.
- Once paired, the LED indicator will become solid, and you will hear a confirmation sound.
- You can now play audio wirelessly from your device.
5.2 FM Radio Mode
- Insert the AUX cable into the AUX port; it acts as an antenna for better reception.
- Press the Mode button to switch to FM Radio mode.
- Press the Play/Pause button to auto-scan and save available FM stations.
- Use the Next/Previous track buttons to navigate between saved stations.
5.3 TF Card / U Disk Mode
- Insert a TF (microSD) card or a USB flash drive (U disk) with MP3 audio files into the respective slot.
- The speaker will automatically switch to TF card or U disk mode and begin playing music.
- Use the Play/Pause, Next/Previous track buttons to control playback.
5.4 AUX Mode
- Connect one end of a 3.5mm audio cable (AUX cable) to the speaker's AUX port.
- Connect the other end to the audio output jack of your external device (e.g., MP3 player, laptop).
- The speaker will automatically switch to AUX mode.
- Control playback from your external device.
5.5 TWS (True Wireless Stereo) Function
The TWS function allows you to pair two Hoco HC4 speakers together for a stereo sound experience.
- Ensure both Hoco HC4 speakers are powered on and not connected to any Bluetooth device.
- On one of the speakers, press and hold the TWS button (or a designated button, refer to speaker markings) until you hear a pairing prompt.
- The two speakers will automatically connect to each other. Once connected, you will hear a confirmation sound.
- Now, connect your device to one of the speakers via Bluetooth as described in Section 5.1. Both speakers will play audio in stereo.
5.6 Call Function
- When a call comes in during Bluetooth mode, press the Play/Pause button to answer.
- Press the Play/Pause button again to end the call.
- Press and hold the Play/Pause button to reject an incoming call.
6. Maintenance
- Cleaning: Wipe the speaker with a soft, dry, lint-free cloth. Do not use liquid cleaners, aerosols, 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.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not power on. | Battery is low or depleted. | Charge the speaker fully. |
| Cannot pair with Bluetooth device. | Speaker is not in pairing mode; device Bluetooth is off; speaker is already connected to another device. | Ensure speaker is in pairing mode. Turn on Bluetooth on your device. Disconnect from other devices. |
| No sound from speaker. | Volume is too low; incorrect mode selected; audio source issue. | Increase speaker and device volume. Ensure correct mode (BT, AUX, TF, U disk, FM) is selected. Check audio source. |
| Poor FM radio reception. | No antenna connected; weak signal. | Insert AUX cable into the AUX port to act as an antenna. Try moving to an area with better signal. |
| TWS pairing fails. | Speakers are too far apart; one speaker is already paired to a device. | Ensure speakers are close to each other. Disconnect both speakers from any Bluetooth devices before initiating TWS pairing. |
8. Specifications
| Feature | Specification |
|---|---|
| Model Name | HC4 |
| Bluetooth Version | 5.0 (Chip: Blue trum 5365A) |
| Speaker Unit | 52mm*2 |
| Speaker Power Output | 5W*2 (Total 10 Watts) |
| Battery Capacity | 1500mAh |
| Charging Time | Approximately 2 hours |
| Music/Talk Time | Up to 3 hours |
| Connectivity Technology | Bluetooth, FM, TF card, U disk, AUX, TWS |
| Audio Output Mode | Surround |
| Mounting Type | Tabletop |
| Speaker Type | Outdoor |
| Product Dimensions | 20 x 8.1 x 8.8 cm |
| Product Weight | 540 g |
| Compatible Devices | Laptop, MP3 Player, Desktop, Tablet, Smartphone |
9. Warranty and Support
This product comes with a standard manufacturer's warranty. Please refer to the warranty card included in the product packaging for specific terms and conditions. Keep your purchase receipt as proof of purchase.
For technical support, troubleshooting assistance, or warranty claims, please contact your local retailer or the official HOCO customer service. Contact information can typically be found on the product packaging or the official HOCO website.
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