The X-Series X4A earmuffs represent a lightweight, low-profile approach to hearing protection designed for moderate-to-high noise environments. They feature an electrically insulated wire headband for consistent pressure over prolonged wear, and pivoting earcups to optimize comfort and efficiency. With innovative sealing ring and ear cushion technology, these earmuffs provide an effective acoustic seal, helping to attenuate loud sounds while maintaining wearability across extended work periods. The design emphasizes compatibility with other personal protective equipment, balanced weight distribution, and durable construction, including rigid ABS cups with TPU outer coatings for abrasion resistance. An emphasis on low-frequency protection and improved heat dispersion contributes to overall wearer comfort during long shifts. The product is designed for industrial and professional use, with colour-coding to indicate protection levels and a focus on reliable, comfortable fit. Note that the stated NRR may overestimate protection in typical use, and refinement of noise reduction should consider real-world conditions.
Features
- Lightweight, low-profile design
- Electrically insulated wire headband
- Innovative sealing ring for low-frequency protection
- Soft wide cushions for comfort
- Pivoting ear cup for optimum fit
- Heat-dispersing dual headband and robust cups
Technical specifications
- NRR 27 dB (model dependent)
- Dielectric version available (A band and P5 helmet-attached)
- EN 352:2020 testing referenced
- Internal stainless steel design for consistent pressure
- ABS cups: rigid, high strength, impact resistant
- TPU outer coating protects against abrasion
The NRR may overestimate the hearing protection provided during typical use. Reducing noise levels from about 32–33 dB, depending on the model, is noted in testing. For electrical considerations, the product is designed with an electrically insulated (dielectric) headband; several safety assessments reference low voltage electrical hazard considerations, and the overall suitability should be determined by the user for their specific hazards beyond noise.
Product specifications
| Brand | 3M |
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