Corona 73028-CO
Corona Beer Bottle Bluetooth Speaker Instruction Manual
Model: 73028-CO
Introduction
Thank you for purchasing the Corona Beer Bottle Bluetooth Speaker. This portable wireless stereo sound system is designed to deliver quality audio for both indoor and outdoor activities. Please read this manual carefully to ensure proper use and maintenance of your device.

Image: The Corona Beer Bottle Bluetooth Speaker, showcasing its unique design.
Package Contents
Ensure all items are present in the package:
- 1 x Corona Wireless Speaker (Bottle Shaped)
- 1 x Charging Cable
- 1 x AUX 3.5mm Cable
Product Overview
Familiarize yourself with the speaker's components and controls.

Image: Close-up view of the speaker's control panel, highlighting the Micro USB Charging Port, AUX 3.5mm Port, and ON/OFF Button.
- Micro USB Charging Port: For charging the speaker's internal battery.
- AUX 3.5mm Port: For wired audio connection to non-Bluetooth devices.
- ON/OFF Button: To power the speaker on or off.
Setup
Charging the Speaker
Before first use, fully charge the speaker. Connect the provided charging cable to the Micro USB Charging Port on the speaker and the other end to a USB power source (e.g., computer USB port, USB wall adapter).
- A charging indicator light (if present, not specified in data) will typically illuminate during charging and turn off or change color when fully charged.
- The speaker has a 300mAh battery. Charging time may vary.
Operating Instructions
Powering On/Off
- To power on, press and hold the ON/OFF Button until you hear an audible prompt or see an indicator light.
- To power off, press and hold the ON/OFF Button again until the speaker shuts down.
Bluetooth Connection
The speaker uses Bluetooth JL4.2 for wireless connectivity.
- Ensure the speaker is powered on and in Bluetooth pairing mode (usually indicated by a flashing LED).
- On your Bluetooth-enabled device (smartphone, tablet, laptop), go to the Bluetooth settings.
- Search for available devices. The speaker should appear as "Corona Beer Bottle Speaker" or similar.
- Select the speaker from the list to pair. Once paired, you will hear a confirmation sound, and the LED indicator will become solid.
- You can now play audio from your device through the speaker. The effective Bluetooth range is approximately 30 feet (9 meters).

Image: The speaker demonstrating compatibility with various Bluetooth-enabled smart devices.
AUX Input Connection
For devices without Bluetooth, use the provided 3.5mm AUX cable.
- Connect one end of the 3.5mm AUX cable to the AUX 3.5mm Port on the speaker.
- Connect the other end of the AUX cable to the headphone jack or audio output port of your non-Bluetooth device.
- The speaker will automatically switch to AUX mode.
- Adjust volume from your connected device.

Image: The speaker connected via AUX cable to a tablet, illustrating the wired audio input option.
True Wireless Stereo (TWS) Function
For an enhanced stereo sound experience, you can pair two Corona Beer Bottle Bluetooth Speakers together.
- Ensure both speakers are powered on and not connected to any Bluetooth device.
- On one speaker (this will be the primary speaker), double-press the ON/OFF button (or a dedicated TWS button if available, not specified but common).
- The speakers will search for each other and automatically pair. You will hear a confirmation tone once connected.
- Once paired, connect your Bluetooth device to the primary speaker as described in the "Bluetooth Connection" section. Audio will now play in stereo across both speakers.

Image: Two Corona Beer Bottle Bluetooth Speakers shown together, indicating their ability to sync for True Wireless Stereo sound.
Maintenance and Care
- Cleaning: Use a soft, dry cloth to clean the speaker. Do not use abrasive cleaners or solvents.
- Water Resistance: This speaker is NOT WATER RESISTANT. Avoid exposure to water, rain, or excessive moisture.
- Storage: Store the speaker in a cool, dry place when not in use.
- Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Charge the speaker regularly, even if not in use for extended periods.
- Temperature: Avoid exposing the speaker to extreme temperatures (hot or cold).
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not turn on. | Battery is depleted. | Charge the speaker using the provided charging cable. |
| Cannot pair via Bluetooth. | Speaker is not in pairing mode; device Bluetooth is off; speaker is too far from device; speaker is already connected to another device. | Ensure speaker is on and in pairing mode. Turn Bluetooth on your device. Move speaker closer to device. Disconnect speaker from other devices. |
| No sound when connected. | Volume is too low; incorrect input mode (Bluetooth/AUX); device volume is low. | Increase volume on both speaker and connected device. Ensure correct input mode is selected (automatic for AUX). |
| Poor sound quality. | Low battery; device too far from speaker (Bluetooth); interference. | Charge the speaker. Move device closer to speaker. Avoid sources of strong electromagnetic interference. |
| TWS pairing fails. | Speakers are too far apart; one speaker is already paired to a device. | Ensure both speakers are close to each other and not connected to any other Bluetooth device before initiating TWS pairing. |
Specifications

Image: Visual representation of the speaker's technical specifications.
| Feature | Detail |
|---|---|
| Model Name | Corona Beer Bottle |
| Model Number | 73028-CO |
| Power Output | 3W |
| Frequency Response | 100Hz - 20KHz |
| Battery | 3.7V / 300mAh |
| Signal & Noise Ratio | ≥85dB |
| Distortion | ≤0.1% |
| Charge Voltage | 5V |
| Bluetooth Version | JL4.2 |
| Bluetooth Range | 30FT (approx. 9 meters) |
| Connectivity | Bluetooth, AUX 3.5mm |
| Audio Output Mode | Stereo (with TWS) |
| Material | Plastic (bottle shaped) |
| Product Dimensions | 2.25"D x 2.5"W x 9.75"H |
| Item Weight | 1.08 pounds |
| Water Resistance | Not Water Resistant |
Warranty Information
This product comes with a Limited Warranty. Please refer to the original purchase documentation or contact customer support for details regarding warranty coverage and terms.
Customer Support
For any questions, technical assistance, or warranty claims, please contact your retailer or the manufacturer directly. Please have your model number (73028-CO) and proof of purchase ready.
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