G TYPE EARPIECE FOR 1 PIN HYTERA / HYT RADIO TC-320, TC-310 This Hytera radio 1 pin earpiece by PENTAGON provides professional quality audio and voice communication for use in noisy and demanding environments. This is the exact same earpiece relied upon by the UK's police forces and emergency services, giving you the reassurance that this PENTAGON earpiece provides the optimum level of performance and reliability. As you'd expect of a PENTAGON earpiece, it uses only the highest quality components and has been thoroughly tested to ensure it provides clear sound performance in even the noisiest of environments. This earpiece will enable you to receive audio messages and instructions from managers and colleagues in crystal clear sound. In addition, it's discreet yet snug design fits snugly around the ear, enabling it to be worn comfortably for long periods of time. This earpiece also features a clip-on microphone for switching on the microphone when you need to relay messages back to colleagues.