1. Introduction
Thank you for purchasing the JOC H011UR Digital Portable Speaker. This device is designed to provide versatile audio playback, featuring an FM radio, MP3 player functionality via USB and memory card, and a portable design. Please read this manual carefully to ensure proper operation and to maximize your enjoyment of the product.

Figure 1: Front view of the JOC H011UR Digital Portable Speaker with antenna extended, showing the speaker grille and control panel.
2. Package Contents
Please check the package for the following items:
- JOC H011UR Digital Portable Speaker
- Power Cable (for charging)
- User Manual (this document)
3. Device Layout

Figure 2: Top view of the JOC H011UR speaker, illustrating the control buttons and digital display.
- Antenna: Extend for better FM radio reception.
- Display Screen: Shows mode, frequency, and track information.
- M (Mode) Button: Switches between FM Radio, USB, and TF Card modes.
- Play/Pause Button: Starts or pauses playback.
- Previous/Rewind Button: Skips to the previous track or station; long press to rewind.
- Next/Fast Forward Button: Skips to the next track or station; long press to fast forward.
- Number Buttons (0-9): For direct frequency input in FM mode or track selection in MP3 mode.
- Speaker Grille: Audio output.

Figure 3: Side view of the JOC H011UR speaker, illustrating the USB port, TF card slot, and headphone jack.
- USB Port: Insert USB flash drives for MP3 playback.
- TF Card Slot: Insert MicroSD (TF) cards for MP3 playback.
- Headphone Jack (3.5mm): Connect headphones for private listening.
- DC 5V Charging Port: Connect the power cable for charging.
- Power Switch: Turns the device ON or OFF.
- Volume Control Dial: Adjusts the audio volume.
4. Setup and Charging
4.1 Initial Charging
Before first use, fully charge the speaker's built-in Lithium-ion battery. Connect the provided power cable to the DC 5V charging port on the speaker and the other end to a compatible USB power adapter (not included) or a computer's USB port. The charging indicator (if present, refer to device for specific indicator location) will typically illuminate during charging and turn off or change color when fully charged.
4.2 Powering On/Off
To turn the speaker ON, slide the Power Switch to the "ON" position. To turn it OFF, slide the switch to the "OFF" position.
5. Operating Instructions
5.1 Mode Selection
Press the M (Mode) button repeatedly to cycle through available modes: FM Radio, USB Playback, and TF Card Playback. The current mode will be indicated on the display screen.
5.2 FM Radio Operation
- Enter FM Mode: Press the M button until "FM" or the radio frequency appears on the display.
- Extend Antenna: For optimal reception, fully extend the telescopic antenna.
- Auto Scan: Long press the Play/Pause button to initiate an automatic scan for available FM stations. The speaker will scan and save stations automatically.
- Manual Tuning/Station Selection:
- Use the Previous and Next buttons to navigate through saved stations.
- To directly input a frequency, use the Number Buttons (0-9). For example, to tune to 98.5 FM, press 9-8-5.
5.3 USB/TF Card MP3 Playback
- Insert Media: Insert a USB flash drive into the USB port or a TF (MicroSD) card into the TF card slot. Ensure the media contains MP3 audio files.
- Enter Playback Mode: Press the M button until "USB" or "TF" appears on the display. Playback should begin automatically.
- Play/Pause: Press the Play/Pause button to pause or resume playback.
- Skip Tracks: Press the Previous or Next buttons to skip to the previous or next track.
- Fast Forward/Rewind: Long press the Previous or Next buttons to fast forward or rewind within a track.
- Direct Track Selection: Use the Number Buttons (0-9) to directly select a track number.
5.4 Volume Control
Rotate the Volume Control Dial (typically located on the side or top) to increase or decrease the audio volume.
5.5 Headphone Usage
To listen privately, plug standard 3.5mm headphones into the Headphone Jack. The speaker's internal sound will automatically mute.
6. Maintenance
- Cleaning: Use a soft, dry cloth to clean the speaker's exterior. Do not use liquid cleaners or abrasive materials.
- Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Charge the speaker regularly, even if not in use for extended periods.
- Storage: Store the speaker in a cool, dry place away from direct sunlight and extreme temperatures.
- Water Exposure: This device is not waterproof. Avoid exposure to water or high humidity.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not power on. | Battery is discharged. Power switch is OFF. | Charge the battery. Ensure the power switch is in the "ON" position. |
| No sound from speaker. | Volume is too low. Headphones are connected. Device is paused. | Increase the volume using the dial. Disconnect headphones. Press the Play/Pause button to resume. |
| FM radio reception is poor. | Antenna not extended. Weak signal in current location. | Fully extend the telescopic antenna. Try moving the speaker to a different location. Perform an auto scan again. |
| USB/TF card not playing. | Incorrect mode selected. Media not inserted correctly. Files are not MP3 format. Corrupted media. | Press the M button to select USB or TF mode. Re-insert the USB drive/TF card. Ensure files are in MP3 format. Try a different USB drive or TF card. |
8. Specifications
| Brand | JOC |
| Model | H011UR |
| Item Weight | 230 g (0.23 Kilograms) |
| Product Dimensions | 0.36 x 0.76 x 1.16 cm |
| Radio Bands Supported | FM |
| Connectivity Technology | Bluetooth, USB |
| Hardware Interface | USB |
| Compatible Devices | MP3 Player |
| Power Source | Battery Powered (Built-in Lithium-ion) |
| Speaker Amplification Type | Active |
| Special Features | Portable |
| Included Components | Power Cable |
9. Warranty and Support
Specific warranty information for the JOC H011UR Digital Portable Speaker is not provided in this manual. For details regarding warranty coverage, technical support, or service, please refer to the product packaging or contact the retailer or manufacturer directly.
Manufacturer Contact Information: Please check the product packaging or the official JOC website for contact details.





