Buy from Amazon : br br Securityman DigiminiAir Digital Wireless Mini Indoor Camera Kit with Audio (Black) br br Do-it-yourself DIY easy to setup and use digital wireless camera kit br Wireless transmission up to 200ft between walls and up to 350ft in clear line of sight br Built-in microphone for audible recording up to 20ft away br Digital wireless pairing between camera and receiver worry free of signal interception by neighbors br Video signal loss alert notification