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Figure 1: Photographs of (a) the Nacre QUIETPRO in-ear communications device connected to a standard issue Personal Role Radio, (b) the Personal Role Radio attached to a standard issue headset, and (c) the Peltor PowerCom Plus communications headset

Figure 1: Photographs of (a) the Nacre QUIETPRO in-ear communications device connected to a standard issue Personal Role Radio, (b) the Personal Role Radio attached to a standard issue headset, and (c) the Peltor PowerCom Plus communications headset