UMUTOO Wireless Headphones

1. Introduction

Thank you for purchasing the UMUTOO A8-BT-Black Wireless Headphones. This manual provides detailed instructions for setting up, operating, and maintaining your headphones. Please read this manual thoroughly before use to ensure optimal performance and longevity of your device.

Image: Front view of the UMUTOO A8-BT-Black Wireless Headphones, showcasing their sleek black design and over-ear cups.

2. What's in the Box

• UMUTOO A8-BT-Black Wireless Headphones
• Quick Start Guide
• Charging Cable (Micro USB)
• AUX-in Cable

Image: The package contents including the headphones, quick start guide, charging cable, and AUX-in cable.

3. Product Features

• FM Radio & Bluetooth 5.0: Built-in premium DSP filter chip for high receiving sensitivity and stable FM signals. Bluetooth 5.0 ensures seamless and stable wireless connections.
• Long Battery Life: Rechargeable lithium batteries (650mAh) provide over 32 hours of continuous use on a single charge.
• Memory Button: Quickly access your favorite or emergency FM radio station with a dedicated memory button.
• Built-in Microphone: Enables hands-free calling with crisp and efficient audio, ideal for home or online classes.
• Lightweight and Comfortable: Weighing only 160g, with ergonomically designed double-deck headband and soft earmuffs for extended comfort.
• Compact & Travel Ready: Foldable design allows for easy storage and portability.
• LCD Screen: Displays time, power status, and current FM channel.

Image: An overview of key features including Bluetooth 5.0, lightweight design, 32-hour playtime, FM radio, memory button, and built-in microphone.

4. Setup

4.1 Charging the Headphones

Before first use, fully charge your headphones.

1. Connect the provided charging cable to the charging port on the headphones.
2. Connect the other end of the charging cable to a USB power source (e.g., computer USB port, USB wall adapter).
3. The charging indicator on the LCD screen will show charging status.
4. A full charge takes approximately 2 hours. The battery provides over 32 hours of playback.

Image: The headphones displaying battery life, indicating over 32 hours of continuous use.

4.2 Bluetooth Pairing

To connect your headphones to a Bluetooth-enabled device:

1. Ensure the headphones are charged and powered off.
2. Press and hold the Power button until the LED indicator flashes blue and red, indicating pairing mode.
3. On your device (smartphone, tablet, laptop), enable Bluetooth and search for available devices.
4. Select "A8-BT" from the list of found devices.
5. Once connected, the LED indicator will turn solid blue, and you will hear a confirmation tone.

Image: Illustration showing both wireless Bluetooth connection to a smartphone and wired AUX connection options for the headphones.

4.3 FM Radio Setup

To use the built-in FM radio:

1. Power on the headphones.
2. Press the "M" (Mode) button to switch to FM Radio mode. The LCD screen will display the frequency.
3. Press the Play/Pause button to automatically scan and save available FM stations.
4. Use the Volume Up/Down buttons to navigate through saved stations or fine-tune the frequency.

Image: Close-up of the "M" (Memory) button on the headphone's earcup, used for saving and recalling favorite FM radio stations.

5. Operating Instructions

5.1 Controls Overview

The headphones feature intuitive controls located on the right earcup.

Image: Close-up of the right earcup showing the LCD screen displaying "103.8 FM MHz" and the control buttons (+, -, Play/Pause, Mode).

5.2 Using Bluetooth Mode

Once paired, your headphones will automatically connect to the last paired device when powered on.

• Music Playback: Use the Play/Pause button to control music. Use Volume Up/Down for track navigation and volume adjustment.
• Hands-free Calling: When a call comes in, press the Play/Pause button to answer or end the call. Long press to reject.

5.3 Using FM Radio Mode

After switching to FM mode:

• Auto Scan: Short press the Play/Pause button to initiate an automatic scan for available stations.
• Manual Tuning: Use the Volume Up/Down buttons to manually adjust the frequency.
• Save Station: Long press the "M" button to save the current station to memory.

5.4 Using AUX Mode (Wired Connection)

For devices without Bluetooth or when battery is low, use the AUX-in cable.

1. Connect one end of the 3.5mm AUX-in cable to the headphone's AUX port.
2. Connect the other end to the audio output jack of your device.
3. The headphones will automatically switch to AUX mode. Note that controls on the headphones may be limited in this mode, and playback will be controlled by your connected device.

6. Maintenance

• Cleaning: Wipe the headphones with a soft, dry cloth. Do not use abrasive cleaners or solvents.
• Storage: Store the headphones in a cool, dry place away from direct sunlight and extreme temperatures. Utilize the foldable design for compact storage.
• Battery Care: To prolong battery life, avoid fully discharging the headphones frequently. Charge them regularly, even if not in use for extended periods.
• Water Resistance: These headphones are not water resistant. Avoid exposure to water or excessive moisture.

Image: The headphones folded compactly, demonstrating their travel-ready and space-saving design.

7. Troubleshooting

8. Specifications

9. Warranty and Support

For warranty information or technical support, please refer to the contact details provided in the Quick Start Guide included with your product or visit the official UMUTOO website.