1. Introduction
The HZ-BT612 Cat's Ears Headset is a stylish and functional audio device designed for a wide range of users. It features vibrant RGB lighting, a unique 'smile face' design, and offers flexible connectivity options including Bluetooth 5.1, TF card playback, and a wired 3.5mm audio jack. This manual provides essential information on product specifications, setup, operation, and maintenance to ensure optimal performance and longevity of your headset.

Video showcasing various color options and RGB lighting effects of the Cat's Ears Headset.
2. Specifications
| Feature | Detail |
|---|---|
| Model | HZ-BT612 |
| Item Condition | New |
| Material | Metal, PVC, Plastic, Leather |
| Communication | Wireless + Wired |
| Wireless Type | Bluetooth |
| Bluetooth Version | 5.1 |
| Effective Distance | 10m (unobstructed) |
| Bluetooth Frequency | 2.402-2.480GHz |
| Battery Capacity | 300mAh |
| Working Hours (Lights Off) | Approx. 10 hours |
| Working Hours (Lights On) | Approx. 5.5 hours |
| Charge Time | Approx. 2 hours |
| Charging Input Voltage | 3.7V-5V DC |
| Connectors | Type-C (charging), 3.5mm Audio Jack |
| Headphone Pads Material | Synthetic leather |
| Impedance Range | up to 32 Ω |
| With Microphone | Yes |
| Volume Control | Yes |
| Control Button | Yes |
| Sound Isolating | Yes |
| Active Noise-Cancellation | No |
| Waterproof | No |
| Support Memory Card | Yes |
| Foldable | Yes |
| Compatibility | Mobile phones, Desktop computers, Tablets, Laptops (iOS, Android, Windows) |
| Certification | CE |
Note: Working hours may vary depending on pairing devices and usage environment.

3. Package Contents
Please check the package for the following items:
- Headset body (HZ-BT612)
- USB charge cable (Type-C)
- User Guide
- Dual 3.5mm audio jack cable
4. Setup
4.1 Charging the Headset
Before initial use, ensure the internal rechargeable battery is fully charged.
- Connect one end of the provided USB Type-C cable to the charging port on the headset.
- Connect the other end of the USB cable to a charger (e.g., wall adapter, power bank) or a computer's USB interface.
- A red light will illuminate on the headset, indicating that it is charging.
- The red light will turn off once the headset is fully charged (approximately 2 hours).
4.2 Bluetooth Pairing Operation Method
To connect your headset to a device via Bluetooth:
- Slide the ON/OFF switch to 'ON' to power on the headset. The headset will automatically enter Bluetooth pairing mode.
- On your mobile phone, tablet, laptop, or other Bluetooth-enabled device, search for available Bluetooth devices.
- Locate and select the device name "HZ-BT612" from the list.
- Once selected, the headset will connect to your device. A confirmation sound or indicator may be present.

5. Operating Instructions
5.1 Power On/Off
- Power On: Slide the ON/OFF switch to 'ON'.
- Power Off: Slide the ON/OFF switch to 'OFF'.
5.2 Button Functions
The headset features multi-functional buttons for easy control:
- Multi-function Button (Button 1):
- Long press: Switch between Bluetooth mode and Radio mode.
- Short press: Play/Pause music.
- Incoming call - Short press: Answer the call.
- Incoming call - Long press: Reject the call.
- Double press: Redial the last broadcast number.
- Triple press: Turn the RGB lights on or off.
- Volume Up / Next Song Button (Button 2, '+'):
- Short press: Increase the volume.
- Long press: Skip to the next song.
- Volume Down / Previous Song Button (Button 3, '-'):
- Short press: Decrease the volume.
- Long press: Go to the previous song.
5.3 Playback Modes
The HZ-BT612 supports multiple audio playback options:
- Bluetooth Mode: Connect wirelessly to your devices as described in Section 4.2.
- TF Card Mode: Insert a TF (MicroSD) card loaded with music into the designated slot on the headset to play audio directly.
- Wired Mode: Use the provided 3.5mm audio jack cable to connect the headset to any device with a compatible audio output. This mode allows you to continue listening even if the headset battery is depleted.


6. Maintenance
To ensure the longevity and proper functioning of your headset, please follow these maintenance guidelines:
- Keep the product dry. Do not store it in damp or wet areas.
- Avoid exposing the product to direct sunlight or high temperatures.
- Do not attempt to open or disassemble the product, especially if you are not a professional.
- Avoid dropping, shaking violently, or striking the product with hard objects.
- Do not use harsh chemicals or abrasive cleaners to clean the headset. Use a soft, dry cloth.
- Do not use sharp objects to scratch the surface of the product.
- Do not continuously charge the headset for over 10 hours to avoid affecting battery service life.
7. Troubleshooting
If you encounter any issues with your HZ-BT612 headset, consider the following common solutions:
- Headset not powering on: Ensure the battery is charged. Connect the headset to a power source using the USB Type-C cable.
- Unable to pair via Bluetooth: Make sure the headset is powered on and in pairing mode. Check that Bluetooth is enabled on your device and that the headset is within the effective 10m range. Try restarting both the headset and your device.
- No sound or low volume: Check the volume levels on both the headset and your connected device. Ensure the headset is properly connected (Bluetooth or wired). If using wired mode, ensure the 3.5mm cable is fully inserted.
- Intermittent connection: Move closer to your connected device to avoid interference or being out of range. Ensure there are no large obstacles between the headset and the device.
- Lights not working: Triple-press the multi-function button (Button 1) to toggle the RGB lights on/off.
- Headset unresponsive: Try powering off and then on the headset. If unresponsive, allow the battery to fully discharge and then recharge it.
Warning: To prevent possible hearing damage, do not listen at high volume levels for long periods.
8. Warranty and Support
This product is covered by standard consumer warranties as per local regulations. For specific warranty details, please refer to your purchase documentation or contact the seller directly. Keep your proof of purchase for any warranty claims.
For further assistance or technical support, please contact the retailer or manufacturer. You may also refer to the original user manual (PDF) for additional information.
