... Noise Cancelling Direct with RJ11 plug corded headset FOR600 Headset Key Features:1. ... M2008, M2616, i2002, i2004, M3903 & M3904 Telephones etc. and Desk Telephones with RJ9 / RJ22 Headset Socket CallTel Headset Model ... M8003, M9009, M9516 Powertouch 480 / 480e / 480i Telephones i2002, i2004, i2004IP (not compatible with i2400 phase II ... 450Telephone headset FOR600 photo: Hot sell corded headset FOR600