netslave

I just bought one to see how it worked, and I'm not thrilled. It's 'loud', in terms of the actual sample sounds, but when using it in voice change mode, you have to speak pretty loudly to make it work. And it sound was too robotic for me. I think I'll go back to my walkie talkie solution. Here's a video of me in the car testing it out right after purchase.

To use with a blaster, simply put a second magnet on the blaster at a specific spot, then move your hand over that spot to speak. I'm working on a system that switches from external communication, to a private channel via walkie talkie to talk to my wife while we troop. Would be useful for squad communications too. But I'm looking for a smaller magnetic switch than a typical window/door switch. The recessed door switches can be smaller, if you cut them out of the plastic holders. Like these: http://www.amazon.com/Honeywell-951WG-WH-Recessed-Magnetic-Contact/dp/B001UKY1A4/ref=pd_sim_hi_8?ie=UTF8&refRID=093A541Z3JGMGKJPRY7K

It's my understanding that the modified hasbro/Disney blaster is fine for Level 1 certification. But if you want level 2/3 (EIB or Centurion?), then you'd need something better. At least per the CRL.