Works for Phones: AltiGen IP805 Cisco 7902, 7905, 7905G, 7906G, 7910, 7910+SW 7911, 7912 IP Phones Cortelco Fanvil C58, C58P C62, C66 Grandstream GXP14XX, GXP1400 GXP1405 GXP1450 GXP2124, GXP2120, GXP2140 GXP2140 GXP2160 GXP2110, GXP2100, GXP2020, GXP2010, GXP1200, GXP280, GXP285, GXV3005, GXV3006, GXV3240 GXV3275 IP Phones HuaweiET325,ET525 Panasonic KX-T Series phones such as: KX-T2260, KX-T2310, KX-T2315, KX-T2365, KX-T2368, KX-T7220, KX-T7230, KX-T7330, KX-T7433, KX-T7625, KX-T7630, KX-T7633, KX-T7636, KX-T7665, KX-T7720, KX-T7730, KX-T7740 and KX-T7750 Snom 300, 320,360,370,710, 720,760, 820, 821, 870 For Yealink SIP-T19P T20P, T21P, T22P, T26P, T28P, T32G, T41P, T38G, T42G, T46G, T48G See more

Please Check the Compatible Phones list before your order.DO NOT BUY THE ITEM IF YOU CAN NOT FIND YOUR PHONE MODEL IN LISTS, CONTACT US FOR ADVICE. Convert smartphone headset to 4P4C RJ9/RJ10 plug for office telephones. All functions on headset and phone would function same. Only works for some specific phones. Please see compatible phone models list in description below.