1. Introduction
Thank you for choosing the Erilles SX-991 Wireless Neckband Bluetooth Earphones. These earphones are designed for sports and everyday use, featuring a comfortable neckband, telescopic wired earbuds, and Bluetooth 5.0 connectivity for a seamless audio experience. This manual provides detailed instructions on how to set up, operate, and maintain your earphones.
2. Package Contents
Please check the package for the following items:
- 1 Pair of Erilles SX-991 Bluetooth Earphones
- 1 x USB Charging Cable
- 6 x Ear Tips (2 of S/M/L Each)
- 1 x User Manual
3. Product Overview
Familiarize yourself with the various parts and controls of your SX-991 earphones.
Figure 3.1: Black Earphones Control Layout
Figure 3.2: White Earphones Control Layout
Key Components:
- On/Off Switch: Powers the earphones on or off.
- Volume Up/Previous Song Button: Increases volume with a short press, skips to the previous song with a long press.
- Volume Down/Next Song Button: Decreases volume with a short press, skips to the next song with a long press.
- Answer/End Call Button: Manages phone calls.
- Retraction Keys: Used to retract the earbud cables.
- Built-in Microphone: For hands-free calling.
- LED Indicator: Shows power status, pairing mode, and charging status.
- Micro-USB Charging Port: For charging the earphones.
4. Specifications
| Feature | Specification |
|---|---|
| Model | SX-991 |
| Style | Neckband In-ear Earphones (Telescopic Wired) |
| Wireless Type | Bluetooth |
| Bluetooth Standard | V5.0 (Compatible with V4.1) |
| Bluetooth Profiles Supported | HSP, HFP, A2DP, AVRCP |
| Wireless Connection Range | <10 meters |
| Operating Frequency Range | 2.4026 GHz - 2.480 GHz |
| Transmitting Power | Class 2 |
| Active Noise-Cancellation | Yes |
| Volume Control | Yes |
| Control Button | Yes |
| Vocalism Principle | Dynamic |
| Charging Time | <3.5 Hours |
| Call Time | >18 Hours |
| Music Playback Time | >16 Hours |
| Standby Time | >300 Hours |
| Features | Neckband, Telescopic Wire, Lightweight, Folding Design, Portable, One-button intelligent open, Power display for iOS devices, One-to-two function, Voice dialing, Terminal redial, Call rejection, Chinese/English switching |
5. Setup Guide
5.1 Charging the Earphones
- Locate the micro-USB charging port on the side of the neckband (refer to Figure 3.1 or 3.2).
- Connect the provided USB charging cable to the earphones and plug the other end into a USB power source (e.g., computer USB port, wall adapter).
- The LED indicator will illuminate during charging. It will change color or turn off once fully charged (typically less than 3.5 hours).
5.2 Powering On/Off
- To Power On: Slide the 'ON/OFF' switch to the 'ON' position. The LED indicator will flash, indicating the earphones are powered on.
- To Power Off: Slide the 'ON/OFF' switch to the 'OFF' position. The LED indicator will turn off.
5.3 Bluetooth Pairing
To connect your earphones to a Bluetooth-enabled device (smartphone, tablet, etc.):
- Ensure the earphones are fully charged and powered off.
- Slide the 'ON/OFF' switch to the 'ON' position. The earphones will automatically enter pairing mode, and the LED indicator will flash rapidly (often alternating blue and red).
- On your device, enable Bluetooth and search for available devices.
- Select "SX-991" (or similar name) from the list of found devices.
- If prompted for a password, enter "0000" (if required).
- Once successfully paired, the LED indicator will flash slowly or turn solid blue, and you may hear an audible confirmation.
5.4 One-to-Two Function
The SX-991 supports connecting to two Bluetooth devices simultaneously:
- Pair the earphones with the first device as described in Section 5.3.
- Disable Bluetooth on the first device.
- Put the earphones back into pairing mode.
- Pair the earphones with the second device.
- Re-enable Bluetooth on the first device. The earphones should now be connected to both devices.
6. Operating Instructions
6.1 Call Management
- Answer Call: Press the 'Answer/End Call' button once.
- End Call: Press the 'Answer/End Call' button once during a call.
- Reject Call: Press and hold the 'Answer/End Call' button for 2 seconds.
- Terminal Redial: Double-press the 'Answer/End Call' button to redial the last number.
- Voice Dialing: Press and hold the 'Answer/End Call' button to activate your device's voice assistant (if supported).
6.2 Music Playback
- Play/Pause: Press the 'Answer/End Call' button once.
- Next Song: Long press the 'Volume Down' button.
- Previous Song: Long press the 'Volume Up' button.
6.3 Volume Control
- Increase Volume: Short press the 'Volume Up' button.
- Decrease Volume: Short press the 'Volume Down' button.
6.4 Telescopic Earbuds
To extend the earbuds, gently pull them out from the neckband. To retract them, press the 'Retraction Key' on the side of the neckband and guide the cable back in.
7. Maintenance
- Cleaning: Use a soft, dry cloth to clean the earphones. Do not use abrasive cleaners or solvents.
- Storage: When not in use, store the earphones in a cool, dry place, away from direct sunlight and extreme temperatures. The folding design allows for compact storage.
- Water Resistance: The earphones are designed for sports, but avoid submerging them in water. Wipe off sweat or moisture immediately after use.
- Ear Tips: Regularly clean the ear tips to prevent wax buildup. Replace them if they become damaged or worn.
8. Troubleshooting
| Problem | Solution |
|---|---|
| Earphones won't turn on | Ensure the earphones are charged. Connect to a power source and check the LED indicator. |
| Cannot pair with device | Make sure Bluetooth is enabled on your device. Ensure earphones are in pairing mode (rapidly flashing LED). Move earphones closer to your device. Try restarting both devices. |
| No sound or low volume | Check the volume levels on both the earphones and your connected device. Ensure earphones are properly paired. |
| Intermittent connection | Ensure there are no obstructions between the earphones and your device. Move away from other wireless devices that may cause interference. Keep within the 10-meter range. |
| Microphone not working | Ensure the earphones are properly connected and selected as the audio input device on your phone/computer. Check for any mute functions on your device. |
9. User Tips
- For optimal sound quality and comfort, experiment with the different sizes of ear tips provided to find the best fit for your ears.
- When not actively listening, retract the earbuds and fold the neckband for compact and tangle-free storage.
- Utilize the one-to-two function to seamlessly switch between two connected devices, such as your phone and tablet, without needing to re-pair.
- Keep the earphones charged to avoid interruptions during long listening sessions or calls. The power display for iOS devices can help you monitor battery life.
10. Warranty and Support
For warranty information and technical support, please refer to the documentation provided at the time of purchase or contact your retailer. Keep your proof of purchase for any warranty claims.
