Introduction
Thank you for purchasing the AGARO Chapter One 4 Watt Portable Bluetooth Speaker. This manual provides essential information for the safe and efficient operation of your device. Please read it thoroughly before use and retain it for future reference.
What's in the Box
- AGARO Chapter One Portable Bluetooth Speaker
- USB Charging Cable
- User Manual
Product Overview
Familiarize yourself with the speaker's components and controls.

Image: Detailed diagram of the AGARO Chapter One speaker showing the Power Button, Play/Pause, Volume (-), Volume (+), Call (Answer/End) buttons on top, and USB Charging port, TF Card slot, Microphone, and AUX port on the side.
Top Panel Controls:
- Power Button: Press and hold to power on/off.
- Play/Pause Button: Press to play or pause audio.
- Volume (-) Button: Press to decrease volume.
- Volume (+) Button: Press to increase volume.
- Call Button: Press to answer/end calls.
Side Panel Ports:
- USB Charging Port: For charging the speaker.
- TF Card Slot: Insert a TF (MicroSD) card for direct audio playback.
- Microphone: For hands-free calling.
- AUX Port: Connect external audio devices via a 3.5mm audio cable.
Setup
1. Charging the Speaker
- Connect the provided USB charging cable to the speaker's USB charging port.
- Connect the other end of the USB cable to a USB power adapter (not included) or a computer's USB port.
- The LED indicator will illuminate during charging and turn off when fully charged.
2. 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 again until the LED indicator turns off.
3. Bluetooth Pairing
- Ensure the speaker is powered on and in Bluetooth pairing mode (the LED indicator will flash).
- On your smartphone or tablet, enable Bluetooth and search for available devices.
- Select "AGARO Chapter One" from the list of devices.
- Once paired, the LED indicator will stop flashing and remain solid.

Image: The AGARO Chapter One speaker wirelessly connected to a smartphone via Bluetooth, indicating a 10-meter range.
4. Aux-in Connection
- Connect one end of a 3.5mm audio cable (not included) 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.
5. TF Card Playback
- Insert a TF (MicroSD) card with audio files into the TF Card slot.
- The speaker will automatically detect the card and begin playing music.
Operating Instructions
Basic Audio Controls
- Play/Pause: Press the Play/Pause button.
- Volume Up: Press the Volume (+) button.
- Volume Down: Press the Volume (-) button.
- Next Track: Press and hold the Volume (+) button.
- Previous Track: Press and hold the Volume (-) button.
Hands-free Calling
- Answer Call: When a call comes in, press the Call button to answer.
- End Call: During a call, press the Call button to end it.
- Reject Call: Press and hold the Call button to reject an incoming call.
Maintenance
- Keep the speaker away from water and excessive moisture. While the product description mentions "Is Waterproof: TRUE", it's generally good practice to avoid submerging or exposing electronics to excessive water.
- Clean the speaker with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Store the speaker in a cool, dry place when not in use for extended periods.
- Avoid dropping or subjecting the speaker to strong impacts.
Troubleshooting
| Problem | Possible Solution |
|---|---|
| Speaker does not power on. | Ensure the speaker is charged. Connect it to a power source using the USB cable. |
| Cannot pair via Bluetooth. |
|
| No sound from speaker. |
|
| Poor sound quality. |
|
Specifications
| Feature | Detail |
|---|---|
| Brand | AGARO |
| Model Number | 33228 |
| Speaker Maximum Output Power | 3 Watts |
| Connectivity Technology | Auxiliary, Bluetooth, Wireless |
| Audio Output Mode | Stereo |
| Product Features | Built-in Microphone, TF Card Slot |
| Color | Black |
| Battery Average Life | 6 Hours (under optimum audio settings) |
| Is Waterproof | TRUE |
| Control Method | Touch |
| Bluetooth Range | 10 Meters |
| Item Weight | 163 Grams |
| Compatible Devices | Smartphone, Tablet |
| Power Source | Battery Powered |
Warranty and Support
The AGARO Chapter One Portable Bluetooth Speaker comes with a 1-year manufacturer's warranty from the date of purchase.
For warranty claims or technical support, please contact the manufacturer or authorized service center. Refer to your purchase documentation for specific contact details.
Manufacturer Contact Information: Universal Corporation Ltd, Xixiang Town, Bao'an District, Shenzhen 518100, China.
Importer Contact Information: Universal Corporation Ltd, 4/1, Middleton street, Kolkata - 700071.