Introduction
Thank you for choosing the Nutek HP77MF2 Headphones. This manual provides detailed instructions for the proper use, setup, and maintenance of your headphones. Please read this manual thoroughly before using the product to ensure optimal performance and longevity.
Safety Information
- Do not expose the headphones to extreme temperatures, humidity, or corrosive substances.
- Avoid dropping or subjecting the headphones to strong impacts.
- Do not disassemble or attempt to repair the headphones yourself. This may void the warranty and cause damage.
- Clean the headphones with a soft, dry cloth. Do not use liquid cleaners.
- Listen at moderate volume levels to prevent hearing damage.
Package Contents
Verify that all items are present in the package:
- Nutek HP77MF2 Headphones
- 3.5mm Audio Cable (Wired connectivity)
- USB Charging Cable
- User Manual (this document)
Image: The included 3.5mm audio cable for wired connection and a USB cable for charging the headphones.
Product Overview
The Nutek HP77MF2 headphones feature an on-ear design with a built-in microphone, FM radio, and SD card playback capabilities. They can be used wirelessly or via a wired 3.5mm connection.
Image: Front view of the Nutek HP77MF2 headphones in white, showing the earcups and headband.
Image: Rear view of the Nutek HP77MF2 headphones, highlighting the adjustable headband and earcup design.
Setup
1. Charging the Headphones
Before first use, fully charge the headphones. Connect the small end of the USB charging cable to the charging port on the headphone earcup and the larger end to a USB power source (e.g., computer USB port, USB wall adapter). The charging indicator light will illuminate during charging and turn off or change color when fully charged.
2. Wired Connection
To use the headphones with a wired connection, plug one end of the included 3.5mm audio cable into the 3.5mm audio jack on the headphone earcup and the other end into the audio output port of your device (e.g., smartphone, tablet, computer). The headphones will function without battery power in wired mode.
Operating Instructions
Power On/Off
- Power On: Press and hold the Power button for approximately 3 seconds until the indicator light illuminates.
- Power Off: Press and hold the Power button for approximately 3 seconds until the indicator light turns off.
Audio Playback (Wireless)
Once powered on, the headphones will enter pairing mode. Connect to your device via Bluetooth. Use the remote controls on the headphones to manage playback:
- Play/Pause: Press the Play/Pause button.
- Next Track: Press the "Next" button.
- Previous Track: Press the "Previous" button.
- Volume Up: Press and hold the "Volume Up" button.
- Volume Down: Press and hold the "Volume Down" button.
Microphone Usage
The built-in microphone allows for hands-free calls when connected wirelessly to a smartphone. Use the remote controls:
- Answer/End Call: Press the Call button (often integrated with Play/Pause).
- Reject Call: Press and hold the Call button.
FM Radio Function
To activate the FM radio:
- Power on the headphones.
- Press the Mode button to switch to FM radio mode.
- Press the Play/Pause button to automatically scan and save available FM stations.
- Use the "Next" and "Previous" buttons to navigate between saved stations.
SD Card Playback
The headphones support audio playback directly from an SD card:
- Insert a compatible SD card (pre-loaded with audio files) into the SD card slot on the headphone earcup.
- Power on the headphones.
- Press the Mode button to switch to SD card playback mode.
- Use the Play/Pause, Next, and Previous buttons to control playback.
Maintenance
- Cleaning: Wipe the headphones with a soft, dry, lint-free cloth. Do not use abrasive cleaners or solvents.
- Storage: Store the headphones in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Charge the headphones regularly, even if not in use for extended periods.
Troubleshooting
| Problem | Solution |
|---|---|
| Headphones do not power on. | Ensure the headphones are fully charged. Connect to a power source using the USB charging cable. |
| No audio in wired mode. | Check if the 3.5mm audio cable is securely connected to both the headphones and the audio source. Verify the audio source's volume is not muted or too low. |
| Cannot hear FM radio stations. | Ensure you are in FM mode. Perform an automatic scan to find and save stations. Try moving to an area with better signal reception. |
| SD card audio not playing. | Ensure the SD card is inserted correctly and contains compatible audio files. Switch to SD card mode using the Mode button. |
Specifications
- Model: HP77MF2
- Connectivity: Wired (3.5mm jack)
- Special Features: Built-in Microphone, FM Radio, SD Card Playback, Built-in rechargeable battery, Android Phone Control
- Earpiece Type: On-Ear / Over-Ear (Note: Product description states On-Ear, specifications list Over-Ear. Prioritizing On-Ear as per product title and general style.)
- Control Method: Remote
- Cable Feature: Retractable (for 3.5mm audio cable, if applicable)
- Power: Built-in rechargeable battery (charged via USB)
- Dimensions: Approximately 15 x 16.5 x 16 inches (Product dimensions, likely packaging)
- Weight: 8 ounces
Image: A person holding the Nutek HP77MF2 headphones, illustrating their approximate size with a measurement of 8.7 inches (22 cm) for the height.
Warranty and Support
For warranty information or technical support, please refer to the documentation provided at the time of purchase or contact your retailer. Keep your proof of purchase for warranty claims.
