Amazon.com: MKJ 2.5mm Headset with Noise Cancelling Microphone Corded Telephone Headset for Office Phone Compatible with Panasonic KX-TGF380M KX-TPA65 KX-TGA680 Cisco SPA303 504G 508G AT&T TL86103 Vtech Uniden : Electronics
Amazon.com: 2.5mm Telephone Headset with Noise Canceling Mic for Panasonic, Including 3.5mm Connector for Cell Phone PC Laptop, CallCenter Office Headset for Cisco Vtech Undiden Cordless DECT for Polycom : Electronics