Patent ID: 7899427

Claim:
A mobile wireless communications device comprising: a housing; a plurality of circuit boards carried by said housing and including radio frequency (RF) circuitry and a power amplifier operative each other and each carried by at least one of the circuit boards; a microphone mounted on one of the circuit boards and operatively connected to said RF circuitry; an antenna carried within the housing and operative with said RF circuitry; an RF shield surrounding and isolating said microphone from the RF circuitry, power amplifier, and antenna, and shielding said microphone from radiated energy generated from the RF circuitry, antenna or power amplifier, said RF shield having a sound opening over said microphone; and a cover extending over said RF shield and having a sound opening aligned with the sound opening in the RF shield and an acoustical tube extending from the sound opening in the cover through the sound opening in the RF shield to the microphone.