audio recorder surveillance

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Tiny Portable 1080P WiFi Full HD Nanny Pet Office Sports Garage Home Camera Auto IR Night Vision wide angle Ⅰ. What can small voice recor...

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.... The shielding angles is horizontal 90°-120°/vertical 90°-120°. Shielding effection is up to 83%. It is acoustic interference. Operating temperatu...

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... video compression technology, professional bandwidth estimation technology, flexible stream adaptive technology, and dual-stream technology for re...