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how to transmit audio video without wire?

i m makin a project on spy robotic car....i hav to transmit audio nd video signals simultaneously....how will i do it??.....plzzz help

The easy way, is to buy one of those wireless security/nanny cam kits. The camera has a transmitter built in, and often a microphone as well.

Harder is to adapt a wireless video sender for a non-transmitter camera, or build your own transmitter/receiver set.

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