1. Introduction
Thank you for purchasing the Philips PRO6305BK/00 In-Ear Headphones. These headphones are designed to provide a high-quality audio experience with comfort and convenience. Featuring 12.2mm drivers, a built-in microphone for calls, and noise-isolating ear caps, they are suitable for various audio needs.

Image 1.1: Philips PRO6305BK/00 In-Ear Headphones. This image displays the black in-ear headphones with their cable and 3.5mm jack connector.
2. Safety Information
Please read this safety information carefully before using your headphones. Keep these instructions for future reference.
- Hearing Safety: Avoid prolonged use at high volume levels to prevent hearing damage.
- Road Safety: Do not use headphones while driving, cycling, or operating machinery, as this may cause a hazard.
- Choking Hazard: Keep the headphones and accessories out of reach of children and pets to prevent accidental ingestion.
- Cleaning: Clean the headphones with a soft, dry cloth. Do not use cleaning agents containing alcohol, ammonia, benzene, or abrasives.
- Temperature: Do not expose the headphones to extreme temperatures (below 0°C or above 45°C).
3. Package Contents
Verify that all items are present in your package:
- Philips PRO6305BK/00 In-Ear Headphones
- Ear caps (3 sizes: Small, Medium, Large)
- Instruction Manual (this document)

Image 3.1: Included ear caps in small, medium, and large sizes, designed for a personalized fit.
4. Setup
4.1 Attaching Ear Caps
- Select the ear cap size that provides the most comfortable and secure fit for your ears. A good seal is crucial for optimal sound quality and noise isolation.
- Gently push the chosen ear cap onto the nozzle of the earbud until it is securely attached.
- Ensure the ear caps are firmly in place before inserting the headphones into your ears.

Image 4.1: Proper placement of ear caps on the headphone drivers for a secure fit.
4.2 Connecting to a Device
The Philips PRO6305BK/00 headphones use a standard 3.5mm audio jack for connection.
- Locate the 3.5mm audio jack on your smartphone, tablet, computer, or other audio device.
- Insert the 3.5mm plug of the headphones firmly into the audio jack of your device.
- Ensure the connection is secure to prevent audio interruptions.
5. Operation
5.1 Audio Playback
Once connected, audio from your device will play through the headphones. Adjust the volume using your device's controls or the in-line remote.
5.2 Making and Receiving Calls
The headphones feature a built-in microphone and an in-line remote for call management.
- Answering/Ending Calls: Press the multi-function button on the in-line remote once to answer an incoming call. Press it again to end an active call.
- Rejecting Calls: Press and hold the multi-function button for approximately 2 seconds to reject an incoming call.
- Voice Assistant: Press and hold the multi-function button to activate your device's voice assistant (e.g., Siri, Google Assistant).

Image 5.1: The in-line remote control with integrated microphone for call and music management.
5.3 Volume Control
Volume can be adjusted directly on your connected audio device. The in-line remote on these headphones does not include dedicated volume buttons; volume is controlled via the source device.
6. Maintenance
- Cleaning Ear Caps: Remove the ear caps and wash them with mild soap and water. Rinse thoroughly and allow them to dry completely before reattaching.
- Cleaning Earbuds: Gently wipe the earbuds with a soft, dry, lint-free cloth. Do not use liquids or sprays directly on the earbuds.
- Cable Care: Avoid sharp bends or excessive pulling on the cable to prevent damage. Store the headphones neatly when not in use.
- Storage: Store your headphones in a clean, dry environment away from direct sunlight and extreme temperatures.
7. Troubleshooting
| Problem | Solution |
|---|---|
| No sound or low volume |
|
| Sound distortion |
|
| Microphone not working |
|
8. Specifications
| Brand | Philips |
| Model Number | PRO6305BK |
| Ear Placement | In Ear |
| Driver Size | 12.2 mm |
| Impedance | 32 Ohms |
| Sensitivity | 109 dB |
| Frequency Range | 7-40,000 Hz |
| Connectivity Technology | Wired |
| Headphone Jack | 3.5 mm Jack |
| Microphone | Yes, Built-in |
| Noise Control | Sound Isolation |
| Weight | 0.02 Kilograms |
9. Warranty and Support
For warranty information and customer support, please refer to the warranty card included with your product or visit the official Philips support website. Keep your proof of purchase for warranty claims.
Online Support: www.philips.com/support