PMLN6830A Ring Push-to-talk allows users to remotely key up the radio and customize their solution. It has been designed for a variety of Motorola bone conduction devices. Motorolaâ€™s Tactical Audio Accessories offer a high performance interface enhanced by high speed DSP (Digital Signal Processor) which only detects the human voice. Providing steady and trouble free transmission without clipping your message even in the noisiest environments. Combines with various Motorola headsets for efficient and safe operation in a variety of work environments.