Nokia,Headset,3300/8200/8800, HDC-5, Headset. Special 2.5mm jack that only works with these phones. Compatible with 8890, 8860, 8390, 8290, 8270, 8265i, 8265, 8260, 6590i, 6590, 6010, 3660, 3650, 3620 3 Years warranty