ANSI-Tested NRR ✔ ✔ ✔ ✔. These safety headphones are built to work as hard as you do. CUSTOM-TUNED DUAL DRIVERS: Provides an audio experience with custom-tuned, dual 6mm drivers; enjoy your sound whether listening to music, engaging with podcasts, or enjoying audiobooks.
| Age Range Description | Adult |
| Control Method | Touch |
| Frequency Range | 20 Hz - 20,000 Hz |
| Frequency Response | 20000 Hz |
| Noise Control | Sound Isolation |
| Headphones Ear Placement | In Ear |
| Controller Type | Button |
| Unit Count | 1.0 Count |
| Model Number | M2.1U |
| Headphone Folding Features | In Ear |
| Headphone Jack | USB-C |
| Model Name | Rumble Wired USB-C |
| Ear Placement | In Ear |
| Impedance | 20 Ohms |
| Form Factor | In Ear |
| Customer Package Type | Standard Packaging |
| Control Type | Volume Control |
| Style | USB-C |
| Water Resistance Level | Waterproof |
| Wireless Technology | Bluetooth |
| Item Weight | 1 Ounces |
| Connectivity Technology | Wired |
| Audio Driver Type | Dynamic Driver |
| Cable Features | Retractable |
| Enclosure Material | Plastic, Silicone |
| Color | Gray Green |
| Sensitivity | 118 dB |
| Compatible Devices | Cellphones |
| Audio Driver Size | 6 Millimeters |
| Style Name | USB-C |
| Earpiece Shape | Bud |
| UPC | 7445021644650 |
You will find that the gray body pairs nicely with both matte and glossy accessories.