COZOY D1

COZOY D1 Overview

Design and Build

The COZOY D1 features a compact and ergonomic in-ear design crafted from a medical-grade 3D-printed resin shell, highlighted by striking blue faceplates. Its lightweight housing is shaped to sit comfortably in the ear, while the custom in-ear construction and silicone eartips provide a secure fit and help reduce outside noise through passive noise isolation.

Moving on to the build, the D1 uses a detachable 0.78mm 2-pin cable system, allowing users to replace or upgrade the cable when needed. It comes with a vibrant purple 4-strand PVC-coated, single-crystal copper silver-plated cable, while the detachable connection makes the IEM easier to maintain and gives users more flexibility with compatible aftermarket options.

Audio

In terms of audio, the COZOY D1 features a 10mm dual-magnet dual-cavity dynamic driver with a rigid graphene diaphragm. It delivers a balanced sound signature with deep, textured sub-bass, clean and natural vocal-forward mids, and smooth, extended treble. It features a 10Hz–50kHz frequency response (with a 20Hz–20kHz effective range), 32Ω impedance, and 100dB/Vrms sensitivity, making it easy to drive with smartphones, laptops, and everyday audio sources.

Connectivity and Controls

On the connectivity side, the COZOY D1 features a standard 3.5mm termination that works smoothly with smartphones, laptops, PCs, portable music players, and other devices with a compatible headphone jack. As a wired IEM, it does not require Bluetooth pairing or battery charging. 

For controls, the D1 is available in both with-mic and no-mic variants. The version with a microphone includes an inline remote for handling calls and voice input, making it well-suited for voice calls, online meetings, gaming, and everyday communication.