Dimensions: 2.8 x 2.3 inches .

Heavy-duty remote speaker microphone with durable 4.2mm coil cable.

High quality microphone element guarantees clear voice.

For additional privacy and security, there is a build-in jack, allowing operation of an 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.