Hi there,
Zaxcom has been announce a new transmitter, TRXLA5 - an upgraded version from TRXLA3. Include all the bell and whistles such as NeverClip, internal recording, ZaxNet, ZaxNet QC, Powerroll etc. Most notable is the support of 5 Volt microphones and MHz Bands.
US: 512.0 - 607.9 (100mW), 614.1 - 615.9 (20mW), 653.1 - 662.9 (20mW)
Global: 512.0 - 698.0
More specifications can be found here.