The Philips X3 Black headphones offer a blend of features and specifications that cater to music enthusiasts and those who appreciate high-quality audio experiences. Here's an overview of the key features:

1. Colour and Type: The headphones come in a sleek black colour, providing a stylish and modern appearance. They are designed as over-ear headphones, which means they cover the ears fully for immersive sound.

2. Foldable Design: The foldable feature allows for easier storage and portability. This can be especially convenient when you're on the go or need to save space when not using the headphones.

3. Installation Guide: The headphones come with an installation guide, which can be helpful for users who are setting them up for the first time or need assistance with any features.

4. Connections and Connectivity: The headphones use a 3.5mm audio jack for wired connectivity. This makes them compatible with a wide range of devices, including smartphones, tablets, laptops, and more.

5. Type of Headphones: The headphones are designed as external supraaural headphones, which means they rest on the ears rather than enclosing them fully. This design choice can offer a comfortable fit for extended listening sessions.

6. Power: The mentioned power specification of 500W is likely a mistake or inaccurate information. Headphones don't require this level of power and usually operate at much lower power levels.

7. Shape and Connector: The headphones are described as having a "box" shape, but this might refer to the general structure or design. The connector is the standard 3.5mm audio jack.

8. Volume Control: The headphones feature digital volume control, allowing you to adjust the audio level with precision.

9. Sound Intensity and Impedance: The sound intensity of 100dB indicates the headphone's ability to produce loud and clear audio. The impedance of 30 Ohms suggests that these headphones can be easily driven by a variety of devices without the need for additional amplification.

10. Binaural and Dynamic: The headphones are binaural, which means they offer sound in both ears for a stereo experience. The mention of "dynamic" might refer to the type of driver technology used in the headphones.

11. Not Included: Bluetooth: While Bluetooth connectivity is not mentioned, these headphones appear to be wired and do not support wireless Bluetooth connections.

12. Height: The mentioned height of 285cm is likely incorrect or exaggerated. Typical headphone dimensions are measured in millimetres or centimetres, not meters.

13. Recommended Use: The headphones are recommended for both calls and music, indicating their versatility for various audio activities.

Before purchasing the Philips X3 Black headphones, it's a good idea to verify the accuracy of the specifications and features, as some of the details provided may be inaccurate or confusing. You can check the manufacturer's website or consult with a retailer to get the most accurate information about the product.