Elegant appearance, streamline design Stable interior construction professional processing. With 9 colors you can choose ROHS 328A Wired Base for Retro Handset1, Fit ... phones, can be used match with all our 3.5mm retro handset, and the other 3.5mm connector equipments. The switch ... .4, 5 colors available: black, yellow, pink, blue, red. Radiation Retro Handset