RIN AUDIO Announces First Wireless Earphones 'APERTURE'.

Model: yue

Portable audio brand "RIN AUDIO" will release its first fully wireless earphones, "APERTURE," embodying the brand's philosophy.

In an era where many consumer wireless earphones focus on "a multitude of features" as their core value, we reject the common notion that "wireless equals compromise." High-quality sound should be enjoyed in a freer form. Starting from this strong philosophy, and based on the design principles of traditional Hi-Fi audio products, we have developed a product with long-term competitiveness in all aspects: sound quality, design, and cost performance.

Design Concept: "Focus" and "Darkroom"

In earphone structure, a highly rigid diaphragm acts as a "lens" that focuses on the finest details of the input sound, creating a clear acoustic image. The design of APERTURE pursues precisely this "focus" accuracy.

The pure housing is a darkroom that blocks light. Only the light entering through the single aperture (APERTURE) – the vivid world of music – is focused without a single cloud on the user's senses.

Acoustic Technology: Distortion Reduced to an Undetectable Level

1. Independent Amplifier Configuration

Unleash the true potential of the drivers and the essence of music. Powerful driving force unlocks the unit's latent capabilities. Experience an unprecedented listening experience that stirs the soul of the original sound, delivered right to your ears.

─Achieving both high output and efficiency

─Perfect control of difficult-to-drive composite diaphragms

─Transparent output with extreme distortion elimination (Total Harmonic Distortion 0.05%)

2. 10mm High Polymer Composite Dynamic Driver

Employs a uniquely developed diaphragm that achieves both high rigidity and high internal loss. With high-speed response and excellent transient characteristics, it focuses on the fine details of the input sound, creating a clear acoustic image.

─Overwhelming reproduction capability with high polymer composite diaphragm

─Thorough suppression of distortion

─High-dimensional balance of high resolution and rich soundstage

Tuning: "Imaging" Pure Sound

Through precise acoustic architecture and unique tuning, we have refined the high-frequency response. By smoothly connecting clear mid-frequencies to low frequencies, we reduce ear fatigue while emphasizing immersion.

Our tuning does not aim for a stimulating sound that leaves a strong impression in a short time. It is designed with the highest priorities on high resolution, natural soundstage expression, and comfort during long listening sessions.

Model: yue

Product Overview & Specifications

Weight: Approx. 4.4g

Waterproof Rating: IPX4

Bluetooth: 5.4

Continuous Playback Time: Approx. 6 hours (Up to 21 hours with charging case)

Features: Noise Cancelling Mode, Ambient Sound Mode

Retail Price: 19,800 yen (tax included)

Sales Start Date: July 3, 2026

Sales Page: https://rin-audio.co.jp/products/aperture

About RIN AUDIO

RIN AUDIO is an audio brand developed by DRIS Inc. (Headquarters: Shibuya-ku, Tokyo).

We are a team composed of Hi-Fi audio specialists who have been deeply involved in the acoustic field for many years. "Just because it's wireless, there's no need to compromise on sound quality. Wonderful sound should be enjoyed in a freer style" – we are convinced of this.

With this philosophy as our starting point, we aim to develop earphones with competitiveness that will be loved in the market for a long time, in all aspects of sound quality, design, and cost performance.

RIN AUDIO Official Website: https://rin-audio.co.jp/

RIN AUDIO Official X: https://x.com/rinaudio_jp

RIN AUDIO Official Instagram: https://www.instagram.com/rinaudio_jp/

RIN AUDIO Official TikTok: https://www.tiktok.com/@rinaudio.jp