... 6000hz, Provid high-quality and reliable voice response; CB MICROPHONE Model No.: EM-402Special Features: Sensitivity: - ... 6-13 days, more or less. If for remote region, it will be a little longer; ... 4-6 days, more or less. If for remote region, it will be a little longer; ... 11-25 days, more or less. If for remote region, it will be a little longer; ... provide you best service EM-402 CB radio Microphone