Amazon.com : Wireless Headset for Desk Phone with Remote Hook ON and Off Handset Lifter, 300 Feet Mobility 8 Hours Talking (Explorer) : Office Products
Poly Savi 7320 Stereo Wireless Headset for Desk phone and PC 214777-01
NEC Compatible Jabra PRO 920 Wireless Headset System | 920-65-508-105 | For NEC IP Phones- Console, Elite, Mark, Dterm, ITL, DT300, DT700
Certified NEC Compatible Headsets DTP DTU DTH series Phones
Plantronics Wireless Headset for Cisco IP Phones 7965G and 7962G
Amazon.com: Sennheiser SD PRO2 - Deskphone Cordless Headset with NEC EHS Adapter - Compatible Phones: Digital NEC Phones DT3xx and DT4xx, IP Phones DT7xx and DT8xx* (i-SIP/N-SIP) : Office Products
NEC Compatible Plantronics Cordless Headset Bundle | CS540 with Electronic Remote Answerer | SL1100 phones & NEC DSX phones only (DSX 34B): 1090021, 1090026, 1090023, 1090028, 1090034, 1090035 | IP4WW-12TXH-B-Tel, 1100061, 1100060,