Comdio H103VAC Corded RJ Headset with Flexible Noise Canceling Mic + Volume Mute Control for Aastra Shoretel Nortel E20 Polycom 335 VVX400 Digium D40 D70 Starleaf Office Telephone IP Phones

Direct connect over the head headset is ideal for some specific Telephones with Modular RJ Headset jack
COMPATIBLE PHONE LIST: BUY ONLY IF YOU ONE OF THE PHONE MODELS IN LIST
Nortel: i2002 (NTDU91), i2004 (NTDU92), i2007 (NTDU96)
Cisco: E20 video phone
PolycomIP Phones: IP 300, 301, 335, 430, 450, 500, 501, 550, 560, 600, 601, 650, 670, CX200, CX300, CX500, CX600, CX700, VVX300, VVX310, VVX 400, VVX410, VVX500, VVX600, VVX1500
Digium Phones: Digium D40, Digium D45, Digium D50,Digium D70
Altigen: AT-500, AT-510, IP-600, IP-705, IP-710, IP-720 Phones
Comdial: 8312 8412
Shoretel: 420, 480, 480G, 485
Starleaf: 2210
Aastra models: 6731i, 6735i, 6737i, 7446i, 9112i, 9133i, 9116, 9143i and 9480i