Amazon.com: Panasonic Comfort Fit Headset for TCA Series Cordless Landline Phones, Foldable Headset with Flexible Noise-Cancelling Microphone and Volume Control, 2.5 mm Plug, Grey/Silver KX-TCA430 : Electronics
Amazon.com: MKJ 2.5mm Telephone Headset with Microphone Noise Cancelling - Wired Headphones for Call Center & Office Phone, Desk Phone Headset for Panasonic KX-TPA60 KX-TGA470 Cisco SPA 303G 525G Vtech Uniden :
OvisLink dual ear call center headset with noise canceling microphone and quick disconnect cord