1. Introduction
This manual provides detailed instructions for the safe and efficient use of your ZIHNIC WH-816 Bluetooth Over-Ear Headphones. Please read this manual thoroughly before operating the device and retain it for future reference.
2. Package Contents
- ZIHNIC WH-816 Bluetooth Over-Ear Headphones
- USB Charging Cable
- 3.5mm Audio Cable
- Protective Carrying Case
- User Manual
3. Product Overview
Familiarize yourself with the various components and controls of your headphones:
Figure 3.1: Overview of headphone controls including power, volume, mode, and ports.
- Power On/Off Button: Located on the right earcup.
- Volume Up/Next Track Button: Press briefly for volume up, long press for next track.
- Volume Down/Previous Track Button: Press briefly for volume down, long press for previous track.
- Multi-function Button (Play/Pause/Call): Controls music playback and call management.
- Mode (M) Button: Switches between Bluetooth, FM Radio, and Micro SD/TF card modes.
- Micro SD/TF Card Slot: Insert a Micro SD/TF card for direct music playback.
- USB Charging Port: For charging the headphones.
- 3.5mm Audio Jack: For wired connection.
- LED Indicator: Shows power, pairing, and charging status.
- Built-in Microphone: For hands-free calls.
4. Setup
4.1 Charging the Headphones
Before first use, fully charge the headphones. A full charge takes approximately 2.5 hours.
- Connect the USB charging cable to the headphone's USB charging port.
- Connect the other end of the USB cable to a USB power adapter (not included) or a computer's USB port.
- The LED indicator will show a red light during charging and turn off when fully charged.
Figure 4.1: The USB charging port for convenient power replenishment.
4.2 Powering On/Off
- To Power On: Press and hold the Power On/Off button for approximately 3 seconds until the LED indicator flashes blue.
- To Power Off: Press and hold the Power On/Off button for approximately 3 seconds until the LED indicator turns off.
4.3 Bluetooth Pairing
Pair your headphones with a Bluetooth-enabled device for wireless audio.
- Ensure the headphones are powered off.
- Press and hold the Power On/Off button for 5-7 seconds until the LED indicator flashes blue and red alternately, indicating pairing mode.
- On your device, enable Bluetooth and search for available devices.
- Select "WH-816" from the list of devices.
- Once paired, the LED indicator will flash blue slowly.
Figure 4.2: The headphones utilize Bluetooth 5.4 for stable and smooth connections.
4.4 Wired Connection
Use the provided 3.5mm audio cable for a wired connection, especially when the battery is low.
- Connect one end of the 3.5mm audio cable to the headphone's 3.5mm audio jack.
- Connect the other end to your audio device's 3.5mm audio output.
- The headphones will automatically switch to wired mode.
Figure 4.3: Headphones support both wireless (Bluetooth) and wired (3.5mm audio cable) connections.
4.5 Micro SD/TF Card Mode
Play music directly from a Micro SD/TF card (up to 32GB).
- Insert a Micro SD/TF card into the designated slot on the headphone.
- The headphones will automatically switch to Micro SD/TF card mode and begin playing music. If not, press the 'M' button to switch modes.
4.6 FM Radio Mode
Listen to FM radio stations directly through your headphones.
- Press the 'M' button to switch to FM Radio mode.
- Press the Multi-function button once to automatically scan and save available FM stations.
- Use the Volume Up/Next Track and Volume Down/Previous Track buttons to navigate between saved stations.
5. Operating Instructions
5.1 Music Playback
- Play/Pause: Press the Multi-function button once.
- Next Track: Long press the Volume Up/Next Track button.
- Previous Track: Long press the Volume Down/Previous Track button.
5.2 Volume Control
- Volume Up: Press the Volume Up/Next Track button briefly.
- Volume Down: Press the Volume Down/Previous Track button briefly.
5.3 Call Functions (in Bluetooth Mode)
- Answer/End Call: Press the Multi-function button once.
- Reject Call: Long press the Multi-function button.
- Redial Last Number: Double-press the Multi-function button.
6. Maintenance
6.1 Cleaning
- Wipe the headphones with a soft, dry cloth.
- Do not use abrasive cleaners or solvents.
- Keep the charging port and audio jack free of dust and debris.
6.2 Storage
When not in use, store the headphones in the provided protective carrying case to prevent damage.
Figure 6.1: The headphones fold compactly for storage in the included protective case.
7. Troubleshooting
| Problem | Solution |
|---|---|
| Headphones do not power on. | Ensure the headphones are charged. Press and hold the Power On/Off button for 3 seconds. |
| Cannot pair via Bluetooth. | Ensure headphones are in pairing mode (LED flashes blue/red). Turn off and on Bluetooth on your device. Move closer to the device. |
| No sound in wired mode. | Ensure the 3.5mm audio cable is fully inserted into both the headphones and the audio device. Check device volume. |
| FM radio reception is poor. | Move to an area with better signal. Re-scan for stations. |
| Micro SD/TF card not recognized. | Ensure the card is inserted correctly and is formatted to a compatible file system (e.g., FAT32). Check card for damage. |
8. Specifications
- Model: WH-816
- Connectivity Technology: Wireless (Bluetooth 5.0), Wired (3.5mm Jack)
- Battery Life: 14 Hours (Music Time)
- Charging Time: 2.5 Hours
- Battery Capacity: 450mAh Lithium Polymer
- Wireless Communication Technology: Bluetooth
- Bluetooth Range: 10 Meters
- Earpiece Shape: Over Ear
- Material: Leather, Foam, Faux Leather
- Item Weight: 10.6 ounces (300 Grams)
- Product Dimensions: 6.71 x 6.7 x 3.35 inches
- Special Features: Adjustable Headband, Lightweight, Micro SD/TF Card Support, FM Radio
9. Warranty and Support
Your ZIHNIC WH-816 headphones come with a 12-month warranty. For any inquiries or support needs, please contact our 24/7 Customer Support service. We are committed to 100% customer satisfaction.
