Polycom Compatible Jabra PRO Wireless Headset Bundle | Remote Answerer included | Earwrap - On Ear Model | SoundPoint IP Phones: IP 301, IP 501, IP601 Polycom Compatible Bundle 2 items- Cordless Headset System and Remote Answerer Talk Time: 8 Hours, Wearing styles: Headband and Earwrap (included) Ideal headset for training, receptionists, offices, help desks, conference calls Conference up to 4 people with multiple Jabra PRO 920 headsets, Great for training/supervising Compatible Polycom Phones: SoundPoint Phones: IP 301, IP 501, IP601