| Specification | Technical Details |
| Brand | HOCO |
| Model | M91 |
| Available Color | White |
| Speaker Outer Diameter | 6mm |
| Audio Plug | Type-C digital plug |
| Line Length | 1.2m |
| Weight | 24g |
| Material Logic | Ceramic + high elastic TPE + nylon braid |
| Microphone | Controller with mic |
| Control Logic | Volume increase/decrease + Call support |
6mm Precision Driver Logic: Engineered by HOCO to provide high-clarity digital acoustic reproduction within a compact, efficient speaker housing.
Premium Ceramic & Nylon Matrix: Constructed with a high-density ceramic chassis and reinforced nylon braid for extreme durability and reduced audio interference.
Type-C Digital Plug Interface: Features a modern digital audio plug for high-fidelity signal transmission, compatible with the latest mobile hardware and tablets.
Integrated Wire Control Logic: Specifically designed with a dedicated controller for seamless volume adjustment and high-clarity call support.
Reinforced 1.2m Structural Shield: Built with a hybrid high-elastic TPE and braided shield to ensure superior flexibility and resistance to daily operational stress.