The ZE300 is a newly designed model based on the brand's "COTSUBU series" ultracompact housing, of which more than 500,000 units have been produced so far. It is the smallest and lightest noise-cancelling earphone, and its size is about 20% smaller than the ZE3000SV, making it ideal for those with small ears as it prevents the earphone from popping out. The internal mechanism has also been completely redesigned to fundamentally improve sound quality and comfort.

In addition to the ultra-small size offering high passive sound insulation performance, the headphones are also equipped with "active noise cancellation," which is unusual for headphones of this size. Utilizing a unique algorithm, the noise-canceling function achieves both sound quality and sound insulation, featuring an "ambient mode" that makes it easier to hear surrounding sounds. Switching modes is possible with a single touch on the left side, allowing you to freely change between them while wearing the headphones, such as when you want to listen to an announcement on the train.

This product allows you to select modes, and in addition to the usual "noise-canceling mode" and "ambient mode," you can also turn off both functions.

The headphones have a "pressure-relief vent" that distributes pressure even when applied from the outside. By adjusting the pressure within the ear canal, they relieve stress on the eardrum while also reducing the load on the internal driver. They are durable enough to withstand use in a lying position, making them ideal for sleeping.

The headphones can be controlled by touch, so you can easily play/pause music, as well as answer/end calls. Additionally, five consecutive touches activate the "disable touch control" function, disabling further touch operations. This not only prevents accidental touches on the headphones but also turns off notification sounds and LED lighting, making them ideal if you want to focus on content for a longer period or if you use them while sleeping.

The Final's uniquely high sound quality was achieved through a complete redesign of the internal configuration. The sound quality combines comfortable softness with clear, detailed audibility, allowing enjoyment of a wide range of content, including music, videos, and games.

The device is equipped with a high-performance microphone that filters out ambient noise and provides clear sound to your conversation partner.

The case and the body of the earbuds are coated with a powder finish to prevent fingerprints and oil from sticking, and to prevent them from slipping out of the hand.

Thanks to its IPX4 water resistance, you can use it without worries during sudden weather changes, on rainy days, or while exercising.