Mics whose Serial Numbers starts with 7010 or 8010 are already Field Replaceable versions. All mics whose serial numbers starts with 5010 or 6010 are not field replaceable and should not be opened by the customer under any circumstances. These models can be upgraded to allow for future field replacements.
As of June 13, 2012, all RevoLabs mics will be shipped as V3 mics, with field replaceable batteries.
Clients may choose to upgrade to the V3 mics from previous mic versions. Charging stations do not need to be upgraded. Clients should upgrade to the latest version of HD firmware.