DHS100 DECT 6.0 Wireless Headset, Black/Silver, 1 Headset for D1700, D1780BT, D2300, D3500, & D3900 Cordless Phone Series DECT 6.0 Headset with charging cradle DECT 6.0 interference free technology Lightweight and comfortable design LED status and charge indicator Answer, volume, and mute keys