1. Introduction
This manual provides instructions for the safe and effective use of your ZOHAN 033 Bluetooth 5.0 and ZOHAN EM042 AM/FM Radio Hearing Protection Headphones. These devices are designed to provide hearing protection while allowing for audio entertainment or communication in noisy environments. Please read this manual thoroughly before operating the headphones.
2. Safety Information
Your ZOHAN hearing protection headphones are certified to provide a Noise Reduction Rating (NRR) of 25dB, and meet ANSI S3.19-1974 and CE EN 352-1 standards. This rating indicates the level of noise reduction provided when worn correctly.
- Always ensure the ear cups form a tight seal around your ears for optimal hearing protection.
- Regularly inspect ear cushions for wear and tear, replacing them as needed to maintain protection effectiveness.
- Do not modify the headphones, as this may compromise their protective capabilities.
- Avoid exposing the headphones to extreme temperatures or moisture. The headphones are not water resistant.
Image: Illustration of NRR 25dB noise reduction effectiveness in various noisy environments.
3. Product Overview and Controls
The ZOHAN 033 and EM042 headphones share many features but have distinct power sources and connectivity options.
ZOHAN EM042 AM/FM Radio Headphone
Image: ZOHAN EM042 features diagram.
- Digital LCD Display: Shows radio frequency and other information.
- Push-Button Design: For tuning and station selection.
- Reinforced Volume Control: Adjusts audio output level.
- Strengthened Antenna: Improves radio reception.
- 3.5mm AUX Port: For wired connection to external audio devices.
- Battery Compartment: For 2 AA batteries (not included).
- Ultra Padded Headband: For comfort.
- Replaceable Foam Ear Cushions: For hygiene and comfort.
- 3-Layer Ear Cup: Enhances noise reduction.
ZOHAN 033 Bluetooth 5.0 AM FM Radio Headphone
Image: ZOHAN 033 features diagram.
- Digital LCD Display: Shows radio frequency, Bluetooth status, and other information.
- Push-Button Design: For tuning, station selection, and Bluetooth controls.
- Reinforced Volume Control: Adjusts audio output level.
- Strengthened Antenna: Improves radio reception.
- Built-in Lithium Battery: Rechargeable power source.
- Adjustable Headband: For various head sizes.
- Ultra Padded Headband: For comfort.
- Replaceable Foam Ear Cushions: For hygiene and comfort.
- 3-Layer Ear Cup: Enhances noise reduction.
4. Setup
4.1 Battery Installation (ZOHAN EM042)
- Locate the battery compartment on one of the ear cups.
- Open the compartment cover.
- Insert 2 AA batteries, ensuring correct polarity (+/-).
- Close the battery compartment cover securely.
4.2 Charging (ZOHAN 033)
- Locate the charging port on the headphone.
- Connect the provided USB charging cable to the port and a suitable USB power source.
- The charging indicator will illuminate. A full charge typically takes approximately 4 hours.
- Once fully charged, the indicator may change or turn off. Disconnect the charging cable.
4.3 Adjusting the Headband
To ensure a comfortable and effective fit, adjust the headband by sliding the ear cups up or down until they securely cover your ears and the headband rests comfortably on your head.
4.4 Replacing Ear Cushions
Ear cushions are designed for snap-in replacement. Gently pull off the old ear cushions and snap the new ones into place, ensuring they are securely attached around the ear cup edges.
5. Operating Instructions
5.1 Power On/Off
Press and hold the Power button (usually marked with a power symbol or 'M') for a few seconds to turn the headphones on or off. The digital display will illuminate upon power-on.
5.2 AM/FM Radio Operation
- Turn on the headphones. They will typically default to radio mode.
- Use the 'M' button to switch between AM and FM bands if available.
- Use the tuning buttons (often marked with arrows or '+' / '-') to manually scan for stations.
- To automatically scan and save stations, press and hold the tuning button for a few seconds. The headphones will scan and store available stations.
- To recall saved stations, use the tuning buttons to cycle through them.
5.3 Bluetooth Pairing (ZOHAN 033)
- Ensure the ZOHAN 033 headphones are powered on.
- Press the 'M' button to switch to Bluetooth mode. The display will show a Bluetooth icon or 'BT', and the headphones will enter pairing mode (indicated by a flashing light or specific audio prompt).
- On your device (smartphone, MP3 player, etc.), enable Bluetooth and search for available devices.
- Select "ZOHAN 033" from the list of found devices.
- Once paired, the headphones will confirm the connection, and the Bluetooth indicator will stop flashing.
5.4 Making/Receiving Calls (ZOHAN 033)
When connected via Bluetooth:
- Answering a Call: Press the multi-function button (often the 'M' button or a dedicated call button) once.
- Ending a Call: Press the multi-function button once during a call.
- Rejecting a Call: Press and hold the multi-function button for a few seconds when a call comes in.
- Redialing: Double-press the multi-function button to redial the last number.
5.5 AUX Mode (ZOHAN EM042)
Connect an external audio device to the 3.5mm AUX port on the ZOHAN EM042 using a standard 3.5mm audio cable. The headphones will automatically switch to AUX mode, playing audio from the connected device.
5.6 Volume Control
Use the reinforced volume control knob or buttons on the ear cup to adjust the listening volume to a comfortable level.
6. Maintenance
- Cleaning: Wipe the headphones with a soft, damp cloth. Do not use abrasive cleaners or immerse the headphones in water.
- Storage: Store the headphones in a clean, dry place away from direct sunlight and extreme temperatures.
- Ear Cushion Replacement: Replace ear cushions periodically or when they show signs of wear to maintain comfort and acoustic seal.
- Battery Care (ZOHAN EM042): Remove AA batteries if the headphones will not be used for an extended period to prevent leakage.
- Battery Care (ZOHAN 033): Recharge the built-in lithium battery regularly, even if not in frequent use, to prolong its lifespan.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Low or dead batteries (EM042); Low or dead internal battery (033) | Replace AA batteries (EM042); Charge internal battery (033) |
| Poor radio reception | Weak signal; Antenna position | Adjust antenna position; Move to an area with better signal |
| No Bluetooth connection (033) | Headphones not in pairing mode; Device Bluetooth off; Out of range | Ensure headphones are in pairing mode; Enable Bluetooth on device; Move device closer to headphones |
| No sound from AUX (EM042) | Cable not fully inserted; Volume too low on source device | Ensure AUX cable is fully inserted; Increase volume on source device |
| Sound distortion | Volume too high; Weak signal | Reduce volume; Improve signal reception |
8. Specifications
| Feature | ZOHAN 033 | ZOHAN EM042 |
|---|---|---|
| Noise Reduction Rating (NRR) | 25dB | 25dB |
| Connectivity | Bluetooth 5.0, AM/FM Radio | AM/FM Radio, 3.5mm AUX |
| Power Source | Built-in 2000mAh Lithium Battery | 2 x AA Batteries (not included) |
| Battery Life (Approx.) | Up to 48 hrs (Bluetooth), 40 hrs (AM/FM) | Varies with battery type and usage |
| Charging Time (033 only) | 4 hours | N/A |
| Display | Digital LCD | Digital LCD |
| Material | Military-grade material | Military-grade material |
| Weight (Approx.) | 0.82 lbs | Not specified, similar to 033 |
| Certifications | ANSI S3.19-1974, CE EN 352-1 | ANSI S3.19-1974, CE EN 352-1 |
9. Warranty and Support
ZOHAN products are backed by a one-year warranty. Additionally, lifetime technical support is available for all ZOHAN customers. If you encounter any issues or have questions regarding your headphones, please contact ZOHAN customer service for assistance.
For support, please refer to the contact information provided with your product packaging or visit the official ZOHAN website.