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Nikon D50 DSLR camera auto focus
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Television off button click
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Morse code, sos, twice, emergency
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Cell phone vibrates
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Radio transmission distortion static and signal glitch
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Walkie talkie turned on, beeps
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CB radio with static turning on and off
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Radio static and hum with frequency change
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Clicking a VCR remote control button
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Radio communications at a police office. Vintage recording.