so i have been using Marshall transmitters exclusively now for about the last 5 years. I am looking to buy a Merlin size transmitter and of course my first stop was the Marshall page. Looking at the Micro i do not see a continuous operation life span of the transmitter with fresh batteries. Anyone car to chime in here. Looking at the Merlin Systems MX Mini as well. It has a 3 day continuous operation life span and a 6 inch antenna. Thanks in advance for any input.