Bluetooth, Computer Phone, DeskPhone Wireless headset Work with All Bluetooth Devices, Most Desk Phones and Computer Phone
Amazon.com : Wireless Headset for Desk Phone with Remote Hook ON and Off Handset Lifter, 300 Feet Mobility 8 Hours Talking (Explorer) : Office Products
Sennheiser DW Office ML Cordless Headset (DW 10 ML) Refurbished | Sennheiser 504456 | 1000531 | Headset Store
Leitner Premium Lite Wireless Office Headset
Amazon.com: Poly - CS510 Support Convertible Wireless Headset (Plantronics) - Over-the-Head One Ear/Monaural Headset - DECT 6.0 - Connects to Desk Phone - Telephone Headset : Electronics
Headsets that can be used with both desk phone and computer (and Cell phone too) - HeadsetPlus.com Plantronics, Jabra Headset Blog
Noise-cancelling hands-free office headset
Plantronics (poly) Wireless Dect Headset Single Ear Convertible Noise Canceling Microphone Connects To Desk Phone Cs540 Manufacturer Refurbished : Target