... over the head – 24dB noise reduction)ENMN4016A: Medium Weight Behind-the-head headset with Swivel Boom Microphone and In-line ... recommended ordered separately)HMN9022A: Medium weight dual muff headset, behind the head (can be worn with helmetBDN6648C: Heavy duty ... Earpiece - Left EarRLN4765A: Large Custom Earpiece - Left EarAPX™ 4000 Audio Adapter for MotoTrbo XPR, DP, XIR, DGP, AXP series, Multi plug ...