2-Way Hard-Hat Mount Headset, Black - Noise Reduction Rating = 22dB (requires RKN4097 or RKN4094)
Compatible with:
Motorola often changes the product SKU name. This product may have also been known as RMN4051a, RMN4051b, RMN4051c, RMN4051d, RMN4051e, RMN4051f, RMN4051ar.