1. Introduction
Thank you for choosing the Koss Porta Pro Wireless Bluetooth On-Ear Headphones. These headphones combine the classic Porta Pro sound with modern wireless convenience, offering a superior listening experience. This manual provides essential information for setting up, operating, and maintaining your headphones.
2. What's in the Box
- Koss Porta Pro Wireless Bluetooth On-Ear Headphones
- Protective Hard Case
- USB Charging Cable
3. Setup
3.1 Charging the Headphones
Before first use, fully charge your Porta Pro Wireless headphones. The headphones feature a 12+ hour rechargeable battery.
- Connect the small end of the USB charging cable to the charging port on the in-line remote control.
- Connect the large end of the USB charging cable to a USB power source (e.g., computer USB port, USB wall adapter).
- The LED indicator on the remote will illuminate during charging and change color or turn off when fully charged.
3.2 Powering On/Off
- To power on: Press and hold the multi-function button on the in-line remote until the LED indicator flashes.
- To power off: Press and hold the multi-function button until the LED indicator turns off.
3.3 Bluetooth Pairing
The Porta Pro Wireless headphones use Bluetooth 4.1 with apt-X for high-quality audio streaming.
- Ensure the headphones are powered off.
- Press and hold the multi-function button for approximately 5-7 seconds until the LED indicator flashes red and blue alternately. This indicates pairing mode.
- On your Bluetooth-enabled device (smartphone, tablet, computer), go to the Bluetooth settings and enable Bluetooth.
- Search for available devices and select "Koss Porta Pro Wireless" from the list.
- Once paired, the LED indicator on the headphones will flash blue periodically.
3.4 Adjusting Fit
The headphones feature an adjustable headband and a Comfort Zone setting on the temporal pads for a personalized fit.
- Adjust the headband to comfortably fit over your head.
- Use the Comfort Zone switch on the earcups to adjust the pressure of the temporal pads, allowing for a lighter or firmer fit.
4. Operating the Headphones
4.1 In-Line Remote Controls
The in-line remote provides convenient control over your audio and calls.
- Play/Pause: Press the multi-function button once.
- Volume Up: Press the '+' button.
- Volume Down: Press the '-' button.
- Next Track: Press and hold the '+' button.
- Previous Track: Press and hold the '-' button.
- Answer/End Call: Press the multi-function button once during an incoming call or active call.
- Reject Call: Press and hold the multi-function button during an incoming call.
- Activate Voice Assistant: Double-press the multi-function button.
4.2 Integrated Microphone
The integrated microphone allows for hands-free calling and voice commands.
4.3 Collapsible Design
The Porta Pro Wireless headphones feature a collapsible design for compact storage and portability.
5. Maintenance
5.1 Cleaning
- Wipe the earcups and headband with a soft, dry cloth.
- Do not use harsh chemicals or abrasive materials.
5.2 Storage
When not in use, store your headphones in the provided protective hard case to prevent damage.
5.3 Water Resistance
The headphones are water-resistant, offering protection against splashes and light rain. They are not designed for submersion in water.
6. Troubleshooting
6.1 No Power
- Ensure the headphones are fully charged.
- Check the charging cable and power source.
6.2 Cannot Pair with Device
- Ensure the headphones are in pairing mode (flashing red and blue LED).
- Make sure Bluetooth is enabled on your device.
- Move the headphones closer to your device (within 10 meters).
- Try unpairing and re-pairing the headphones from your device's Bluetooth settings.
6.3 No Sound or Low Volume
- Adjust the volume on both the headphones and your connected device.
- Ensure the headphones are properly paired and connected.
- Check if the audio source is playing.
7. Specifications
| Feature | Specification |
|---|---|
| Connectivity Technology | Bluetooth 4.1 with apt-X |
| Battery Life | 12+ Hours |
| Charging Time | Approximately 1.5 hours |
| Frequency Response | 15-25,000 Hz |
| Impedance | 60 Ohms |
| Microphone | Integrated |
| Controls | In-line (Play/Pause, Volume, Track, Answer/End Call) |
| Weight | 1.76 ounces (50 grams) |
| Water Resistance Level | Water Resistant |
| Included Components | Protective Case |
8. Warranty and Support
8.1 Warranty Information
The Koss Porta Pro Wireless headphones come with a 1-Year Limited Warranty. Please retain your proof of purchase for warranty claims. The warranty covers manufacturing defects but does not cover damage due to misuse, accidents, or unauthorized modifications.
8.2 Customer Support
For technical assistance, warranty service, or general inquiries, please contact Koss Corporation customer support:
- Website: www.koss.com
- Refer to the Koss website for the most up-to-date contact information and support resources.
