Gaming consoles are not considered home entertainment accessories, as they are primarily used for playing video games.

A soundbar is a speaker system that is designed to improve the sound quality of a TV by providing a wider soundstage and clearer dialogue.

9.2 is not a standard speaker configuration. Common speaker configurations include 2.0, 5.1, and 7.1.

A subwoofer is a speaker that is specifically designed to reproduce low-frequency sounds, such as bass and explosions.

LED projectors are not commonly used for home entertainment purposes. LCD, DLP, and Laser projectors are more popular.

4K projectors offer a higher resolution than 1080p projectors, resulting in sharper and more detailed images.

Computer monitors are not typically used for home entertainment purposes. Projector screens, TV screens, and curved screens are more common.

Screen protectors are primarily used to protect the screen from scratches and damage caused by dust, dirt, and other objects.

Google Chromecast is not a streaming device in the same way as Roku, Apple TV, and Amazon Fire TV. It is a dongle that allows users to cast content from their smartphones, tablets, or computers to their TV.

Smart TVs offer access to streaming apps, allowing users to watch movies, TV shows, and other content without the need for a separate streaming device.

MP3 is an audio format that is commonly used for music, but it is not a home entertainment audio format. Dolby Atmos, DTS:X, and THX are all surround sound audio formats that are used in home entertainment systems.

A home theater receiver performs all of these functions: amplifying audio signals, switching between different audio sources, and decoding surround sound audio formats.

USB cables are not typically used for home entertainment purposes. HDMI, VGA, and DVI cables are more common.

Surge protectors are designed to protect electronic devices from power surges, which can damage or destroy them.

Motion-activated remote controls are not commonly used for home entertainment purposes. Universal remote controls, smart remote controls, and voice-activated remote controls are more popular.