Lightweight Dual headsetboom microphone with HC-4 insert 

• Standard Low impedance Dual Earpiece headset
• Padded Earpieces
• Adjustable headband 
• Fully adjustable boom
• Either Dx or Normal range inserts
• Earphone - 1/4in stereo jack
• Mic - 3.5mm plug (matches AD-1 adaptors)
• Requires AD-1-Y (Yaesu) or AD-1-K (Kenwood)
• Icom version with electret insert & AH-IC
• Requires AD-1 series mic adaptor & PTT