We have our own factory ,we also provide OEM service .
*Dimensions: 2.8 x 2.3 inches Heavy-duty remote speaker microphone with durable 4.2mm coil cable
*High quality microphone elements guarantee clear sound .For additional privacy and security, there is a build-in jack, allowing operation of a remote earphone with standard 3.5mm
plug.
*Pretty good-looking appearance and good feel for the key-press. With durable stainless steel rear clip can rotate 360 degrees .
*Many connector types are available and optional for motorola ,kenwood,icom, yaesu, HYT and so on .