Help clarify my (mis)understanding of Part 15: 1. If a manufacturer declares that it is approved by the FCC as a device under Part 15, does that not mean that it is approved for operation without a licences (so long as it doesn't cause interference)? 2. Within Part 15, can only those intentional radiators that are specifically discussed in Part 15 be approved? Part 15 specifically provides information for certain types of equipment. Does that exclude all other types of equipment and purposes? For instance, it specifically talks about Cordless Telephones, so clearly they can be licensed as a Part 15 device. However, I see no mention of a baby monitor, and those are sold as a devise not requiring licensing. 3. Is there language somewhere that specifically excludes a wireless microphone as being able to operate without a license? 4. Are there any wireless microphones on the market that are claiming Part 15 acceptance? Dan