| Specification | Technical Details |
| Brand | HOCO |
| Model | M66 |
| Available Colors | Black, White |
| Speaker Driver | 12mm |
| Audio Plug | Ø3.5mm |
| Line Length | 1.2m |
| Weight | 14g |
| Material | ABS + TPE |
| Microphone | Controller with mic |
| Control Logic | Functional one-button operation |
12mm Precision Driver Logic: Engineered by HOCO to provide high-clarity acoustic reproduction across the entire frequency spectrum with an optimized impedance matrix.
Functional One-Button Command: Features a specialized inline controller that enables high-fidelity management of calls and music playback with a single tactile operation.
ABS+TPE Reinforced Shielding: Constructed with high-durability ABS and TPE materials that ensure superior moisture resistance and a tangle-free operational lifecycle.
Ultra-Lightweight 14g Chassis: Designed for high-comfort long-duration usage, providing an ergonomic fit that remains stable during active movement or professional travel.
Universal 3.5mm Interface Matrix: Built with a standardized Ø3.5mm audio plug to ensure high-conductivity signal transmission and compatibility with all global mobile devices.