Specifications include, but are not limited to: Wireless Mobile Microphone must be compatible with Motorola APX7500 mobile radios; Wireless Mobile Microphone must provide remote Emergency button activation of the mobile radio. Wireless Mobile Microphone range must be at least 1000’; Wireless Mobile Microphone must provide an indication to user when out of range; In an out-of-range scenario, the Wireless Mobile Microphone must resynch with the mobile radio when the unit comes back to within 20’ of its maximum range. Note: if an officer becomes involved in a foot pursuit, the WMM may go out of range. As soon as the officer comes back into range, the WMM must quickly resynch with the mobile radio so communications can be restored.