Kiwi Ears / AD1-Silver

＜＜July 2026 New Product！＞＞The "AD1" is a compact DAC adapter that allows you to easily enjoy high-resolution music playback simply by connecting it to USB Type-C-compatible devices such as smartphones, tablets, and PCs.

■ Use wired earphones via USB-C
・The AD1 is a compact DAC adapter that allows you to easily use wired earphones or headphones with USB Type-C devices such as smartphones, tablets, and PCs. Even on devices lacking a 3.5mm headphone jack, simply connecting it to the USB Type-C port enables a high-quality audio playback setup.

■ Equipped with the KT02H20 DAC chip
・It features the KT02H20 DAC chip, supporting PCM playback up to 32-bit/384kHz. It clearly reproduces the fine details of the audio source, delivering high-resolution sound that is difficult to achieve with standard built-in audio outputs on smartphones or PCs.

■ Low-distortion, low-noise design
・With a THD+N of -85dB, a dynamic range of 100dB, and a noise floor kept below 3μV, it delivers stable playback quality for everything from casual daily listening to on-the-go use. Despite its compact size, it offers clear, transparent sound.

■ Supports 3.5mm TRRS/CTIA standards
・The output is a 3.5mm TRRS jack compliant with the CTIA standard. Connecting compatible earphones or headphones enables the use of in-line microphone functions and in-line controls on Android devices.

■ Supports in-line controls and calls
・When used with compatible earphone cables on Android devices, you can adjust volume, skip tracks, control playback, and answer calls directly from the controls. It is useful not only for music playback but also for phone calls and online meetings.

■ Compact design for easy portability
・The AD1 supports plug-and-play functionality, requiring no additional drivers or dedicated software. Its lightweight, portable housing makes it suitable for use in various environments, including commuting, the office, at home, or while traveling. Available in Black and Silver.
■ Model Name: AD1
■ Input Port: USB Type-C
■ Output Port: 3.5mm TRRS
■ Supported Standard: CTIA
■ PCM Support: Up to 32-bit/384kHz
■ ADC Support: 48kHz/24-bit
■ DAC Chip: KT02H20
■ DNR: 100dB (@1kHz -60dBFS Typ)
■ THD+N: <0.004% (32Ω load, A-weighted)
■ Crosstalk: -60dB (@1kHz 0dBFS Typ)
■ Noise Floor: <3μV (A-weighted)
■ Frequency Response: ±0.2dB (20Hz–20kHz)
■ In-line Controls: Android compatible