Linksys Cisco SPA series Compatible VXI Wireless VoIP V150 Bundle with 2.5mm Headset Cable Included | For Linksys SPA VoIP phones: 501G, 502G, 504G, 508G, 509G, 512G, 514G, 525G2, 921, 922, 941, 942, 962 Bundle 2 items: Includes VXI Wireless Headset and 2.5mm Headset Cable for Linksys Cisco SPA series Certified VoIP Compatible Range up to 300 feet away for maximum mobility Up to 10 hours of talk time - For all day usage and never miss a call. Low-cost, affordable, commercial-grade headset - works with Linksys Cisco SPA series office phones with a headset port (RJ-9/RJ-22) Linksys Cisco SPA series Compatible Phones: 501G, 502G, 504G, 508G, 509G, 512G, 514G, 525G2, 921, 922, 941, 942, 962