my team is having issues with the headsets (Ztactical Bowman Elite II). we have the ptt switch is a peltor version from Emerson Gear. Both are designed for The Motorola Talkabout. now when we tested them there was no sound out of 2 of the 6 headsets we ordered and we got a connection thorugh another Talkabout that was not hooked up to the Ptt and the headset. What i would like to know is has anybody experienced this problem or even better, how do we fix it. Our Talkabout Models are the T7400 and the MR 350/351 thanks.