... Cancelling Direct with RJ11 plug Earphones Direct with RJ11 plug Headset Key Features:1. Acoustic shock ... , DTH-16, DTH-16D, DTH-32, DTH-32D Dterm Series i Aspire NEC DT310, DT330, DT700, DT730, DT750 IP Phones DSX ... 4 (2-line) Uniden: 420 and 450Telephone headset FOR600 photo: Earphones Direct with RJ11 plug