Introduction
Thank you for purchasing the JVC HA-A7T-B True Wireless Earphones. This manual provides essential information for the safe and efficient use of your new earphones. Please read it thoroughly before use and keep it for future reference.
Image 1: JVC HA-A7T-B True Wireless Earphones and Charging Case.
Product Features
- Compact and Lightweight Design: Each earphone weighs approximately 4.8g, featuring a stick-type design for a secure and stable fit.
- Simple One-Button Operation: Control playback, pause, track skipping, and volume directly from the earbuds.
- Auto On/Off & Auto Connect: Earphones automatically power on and connect to your device when removed from the charging case, and power off when returned.
- High-Quality Sound: Equipped with high-quality drivers utilizing powerful neodymium magnets for balanced, powerful, and clear audio.
- Stable Wireless Connection: Supports Bluetooth Standard Ver. 5.0/Power Class 1 with optimized antenna placement.
- Extended Battery Life: Up to 6 hours of continuous playback from the earbuds, and a total of approximately 15 hours with the charging case.
- Quick Charge Function: A 15-minute charge provides approximately 1 hour of continuous playback.
- IPX4 Water Resistance: Earphones are resistant to splashes and light rain (earphone main unit only).
- Built-in Microphone: Enables hands-free calls and use for telework.
- Portable Charging Case: A small, easy-to-carry charging case is included.
Image 2: Key features of the JVC HA-A7T-B earphones, including 15 hours total battery life, voice control compatibility, and IPX4 water resistance.
Setup
1. Initial Charging
- Place both earphones into the charging case.
- Connect the included USB charging cable to the charging case and a USB power source.
- The indicator lights on the charging case will show the charging status. Ensure the earphones and case are fully charged before first use.
2. Pairing with a Bluetooth Device
- Ensure the earphones are charged and placed in the charging case.
- Open the charging case. The earphones will automatically power on and enter pairing mode (indicator lights will flash).
- On your Bluetooth device (e.g., smartphone), go to Bluetooth settings and enable Bluetooth.
- Select "JVC HA-A7T" from the list of available devices.
- Once connected, a confirmation sound will play, and the indicator lights on the earphones will change.
- For subsequent use, simply remove the earphones from the case, and they will automatically connect to the last paired device.
3. Fitting the Earphones
- Select the appropriate size of ear tips (S, M, L) for a comfortable and secure fit. A good seal is crucial for optimal sound quality.
- Gently insert each earphone into your ear canal.
- Twist slightly to ensure a snug and stable fit. The stick-type design should sit comfortably in your ear.
Image 3: The included accessories: charging case, three sizes of ear tips (S, M, L), and a USB charging cable.
Operating Instructions
Earphone Button Functions
Each earbud features a multi-function button. The functions may vary slightly between the left and right earbud or depending on the number of presses.
| Action | Function |
|---|---|
| Single Press (Left/Right) | Play/Pause music, Answer/End call |
| Double Press (Right) | Next track |
| Double Press (Left) | Previous track |
| Triple Press (Right) | Volume Up |
| Triple Press (Left) | Volume Down |
| Long Press (Left/Right) | Reject call, Activate Voice Assistant |
Charging the Earphones and Case
The earphones charge automatically when placed in the charging case. The charging case itself is charged via the included USB cable.
Image 4: Illustration of battery life: 6 hours from the earbuds and an additional 9 hours from the charging case, totaling 15 hours of playback.
Maintenance
Cleaning
- Regularly clean the ear tips and the mesh covers of the earphones to prevent wax buildup, which can affect sound quality. Use a soft, dry cloth.
- Wipe the charging contacts on both the earphones and the case with a dry cotton swab to ensure proper charging.
- Clean the exterior of the earphones and charging case with a soft, slightly damp cloth. Do not use harsh chemicals or abrasive materials.
Water Resistance (IPX4)
The JVC HA-A7T-B earphones are rated IPX4, meaning they are protected against splashing water from any direction. This makes them suitable for light rain or sweaty workouts. However, they are not designed for submersion in water. The charging case is not water-resistant; avoid exposing it to moisture.
Troubleshooting
- No Sound/Connection Issues:
- Ensure both earphones are charged.
- Verify Bluetooth is enabled on your device and the earphones are selected.
- Try unpairing and re-pairing the earphones with your device.
- Ensure no other Bluetooth devices are interfering.
- One Earphone Not Working:
- Place both earphones back into the charging case, close the lid, wait a few seconds, then remove them.
- Check if the charging contacts on the non-working earphone and case are clean.
- Ensure the earphone is charged.
- Charging Problems:
- Ensure the USB cable is securely connected to both the case and the power source.
- Try a different USB cable or power adapter.
- Clean the charging contacts on the earphones and inside the case.
- Poor Sound Quality:
- Ensure the ear tips provide a good seal in your ear canal. Try different sizes.
- Clean the ear tips and earphone mesh to remove any debris.
- Move closer to your connected device to avoid signal interference.
Specifications
| Feature | Specification |
|---|---|
| Model Name | HA-A7T-B |
| Brand | JVC |
| Connectivity | Wireless (Bluetooth 5.0, Power Class 1) |
| Earphone Type | In-ear |
| Weight (per earbud) | Approx. 4.8g |
| Water Resistance | IPX4 equivalent (earphone main unit only) |
| Battery Life (Earbuds) | Approx. 6 hours |
| Total Battery Life (with Case) | Approx. 15 hours |
| Quick Charge | 15 min charge for approx. 1 hour playback |
| Charging Port | USB (for charging case) |
| Included Components | Ear tips (S, M, L), USB charging cable, charging case |
| Microphone | Built-in (for hands-free calls) |
| Impedance | 16 ohms |
| Operating Frequency | 2.4GHz band (2.4000GHz-2.4835GHz) |
| Noise Control | Active Noise Cancellation (Note: This feature is typically for ambient noise reduction, but the product description only mentions a built-in microphone for calls. Users should verify if this refers to active noise cancellation for listening or just for microphone clarity during calls.) |
| Country of Origin | China |
Warranty and Support
JVC products are manufactured to high-quality standards. For warranty information, please refer to the warranty card included with your product or visit the official JVC website for details specific to your region.
For technical support, troubleshooting assistance, or service inquiries, please contact JVC customer support through their official website or the contact information provided in your product packaging.
