Polycom Compatible V150 VoIP Headset Bundle | SoundPoint Phones: IP335, IP430, IP450, IP550, IP560, IP650, IP670, VVX101, VVX201, VVX300, VVX500, VVX310, VVX600, VVX400, VVX410, VVX1500 - EHS included POLYCOM IP COMPATIBLE BUNDLE OF 2 ITEMS: Includes Wireless Headset and Electronic Remote Answerer Interface Cable (EHS) POLYCOM COMPATIBLE IP PHONES: SoundPoint Phones: IP 335, IP 430, IP 450, IP 550, IP 560, IP 650, IP 670, VVX101, VVX201, VVX300, VVX301,VVX310, VVX311, VVX400, VVX401, VVX410, VVX411, VVX500, VVX501, VVX600, VVX601, VVX1500 GREAT RANGE: Range up to 300 feet away for maximum mobility LONG LASTING TALK TIME: Up to 10 hours of talk time - For all day usage and never miss a call GLOBAL TECK GUARANTEE: 100% Happiness guarantee - Guaranteed to work with Polycom compatible phones - Friendly trained support specialists based in Virginia. If you have any questions about this product feel free to contact us. That's the type of service and tech support not found with other merchants.