Introduction
The Awei A840BL Wireless Sport Bluetooth Headphones are designed for active lifestyles, offering wireless audio with comfort and durability. This manual provides instructions for setting up, operating, and maintaining your headphones to ensure optimal performance.
Key Features:
- Bluetooth 4.0 for high-fidelity stereo music and clear speech within 10 meters.
- Built-in microphone for hands-free calling.
- NFC function for quick and convenient device connection.
- Sweatproof design suitable for workouts.
- Power display on iOS devices.
- CVC 6.0 intelligent noise-isolation technology.
Product Overview
Familiarize yourself with the components and controls of your Awei A840BL headphones.

Image: Awei A840BL Wireless Sport Bluetooth Headphones, black color, showing the over-ear hook design and in-ear buds.

Image: Diagram illustrating the controls on the Awei A840BL headphones, including Volume-, Volume+, Previous, Next, Multifunctional Key, and Microphone.
Setup and Pairing
1. Charging the Headphones
Before first use, fully charge your headphones. The charging time is approximately 2 hours.
- Connect the charging cable to the USB charging port on the headphone.
- Connect the other end of the cable to a USB power source (e.g., computer, wall adapter).
- The indicator light will show charging status and turn off or change color when fully charged.
2. Powering On/Off
- To power on, press and hold the Multifunctional Key (Power button) for approximately 2 seconds until the indicator light flashes.
- To power off, press and hold the Multifunctional Key for approximately 3-4 seconds until the indicator light turns off.
3. Bluetooth Pairing
The headphones can connect to up to two Bluetooth devices simultaneously.
- Ensure the headphones are powered off.
- Press and hold the Multifunctional Key for about 5-7 seconds until the indicator light flashes red and blue alternately, indicating pairing mode.
- On your device (smartphone, tablet), enable Bluetooth and search for available devices.
- Select "Awei A840BL" from the list of devices.
- Once paired, the indicator light will flash blue periodically, and you will hear a confirmation tone.
4. NFC Pairing (if supported by your device)
- Ensure NFC is enabled on your device and the headphones are powered on.
- Bring your NFC-enabled device close to the NFC area on the headphone (refer to product diagram for location).
- Your device will prompt you to confirm the pairing.

Image: Illustration showing an NFC-enabled smartphone being brought close to the Awei A840BL headphone for quick pairing.
Operating Instructions
Music Playback:
- Play/Pause: Press the Multifunctional Key once.
- Next Track: Press the "Next" button (Volume+ button, usually a long press or specific press).
- Previous Track: Press the "Pre" button (Volume- button, usually a long press or specific press).
- Volume Up: Short press the Volume+ button.
- Volume Down: Short press the Volume- button.
Call Management:
- Answer/End Call: Press the Multifunctional Key once.
- Reject Call: Press and hold the Multifunctional Key for approximately 2 seconds.
- Redial Last Number: Double-press the Multifunctional Key.
- Mute/Unmute Call: During a call, press the Multifunctional Key twice.
Voice Prompt and Power Display:
- The headphones provide English voice prompts for incoming call numbers.
- For iOS devices, the battery level of the headphones will be displayed on your device's screen.
Maintenance and Care
To ensure the longevity and optimal performance of your Awei A840BL headphones, follow these maintenance guidelines:
- Cleaning: Wipe the headphones with a soft, dry cloth. For the ear tips, you may use a slightly damp cloth with mild soap, then dry thoroughly. Do not use harsh chemicals or abrasive materials.
- Sweatproof Design: While the headphones are sweatproof, it is recommended to wipe them down after intense workouts to prevent sweat buildup.
- Storage: Store the headphones in a cool, dry place away from direct sunlight and extreme temperatures.
- Avoid Water Immersion: The headphones are sweatproof, not waterproof. Do not immerse them in water.
Troubleshooting
If you encounter issues with your Awei A840BL headphones, refer to the following common solutions:
- Headphones not turning on:
- Ensure the headphones are fully charged.
- Press and hold the Multifunctional Key for the required duration (approx. 2 seconds).
- Unable to pair with device:
- Ensure the headphones are in pairing mode (red and blue indicator light flashing alternately).
- Make sure Bluetooth is enabled on your device and it is within 10 meters of the headphones.
- Forget the device from your phone's Bluetooth settings and try pairing again.
- If using NFC, ensure NFC is enabled on your device and you are tapping the correct area.
- Music cuts out or connection is unstable:
- Ensure there are no significant obstacles (walls, large metal objects) between the headphones and your device.
- Move closer to your paired device.
- Avoid environments with high Wi-Fi or other wireless interference.
- Ensure your device's Bluetooth is not connected to too many other devices simultaneously.
- Low microphone volume during calls:
- Ensure the microphone is not obstructed.
- Check your device's call volume settings.
- Test the microphone in a quiet environment.
- No sound:
- Check the volume levels on both the headphones and your connected device.
- Ensure the headphones are properly paired and connected.
- Try restarting both the headphones and your device.
Specifications
- Model:
- A840BL
- Wireless Communication Technology:
- Bluetooth, NFC
- Bluetooth Version:
- 4.0 (as per product description)
- Material:
- Silicone
- Item Weight:
- 90 g
- Microphone Format:
- Built-In
- Noise Control:
- Active Noise Cancellation (CVC 6.0)
- Operating Range:
- Up to 10 meters (33 feet)
- Music Playing Time:
- Approximately 4.5 hours
- Talking Time:
- Approximately 4.5 hours
- Standby Time:
- Approximately 200 hours
- Charging Time:
- Approximately 2 hours
- Battery:
- 3.7V 100mAh polymer lithium battery
- Product Dimensions:
- 20 x 15 x 30 cm
Warranty and Support
Information regarding specific warranty terms and customer support contact details is not available in the provided product data. Please refer to the product packaging or the retailer's website for warranty information and support contacts.
Additional Resources
For a visual overview of the product, please refer to the video below:
Video: Product Summary Video for Awei A840BL Wireless Sport Bluetooth Headphones, demonstrating features and design. Duration: 0:41.





