Almost all products are developed and manufactured by EVC electronic. They are free of third parties’ rights or delivery opportunities. EVC electronic is ISO certified. Our products are only available directly from EVC and these authorized dealers .Electronics Planet Online, Yerevan, Armenia, Electronics Planet online electronics store in Yerevan, Internet hardware store, online electronics store, Elecectronics Planet, , , , , .A simple am transmitter circuit with diagram and schematic. This am radio transmitter can transmit audio sound to your backyard. Follows FCC regulations and still produces enough amplitude modulation..Electronic shooting ear muffs provide the ability to hear sounds occurring around you better while wearing the ear muffs than you can without any protection. With the ear muffs in place, your hearing is enhanced through a built in amplifier..