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21 Channel Phone Signal Blocker 20W GSM Signal Mobile Alarm CDMA GSM

21 Channel Phone Signal Blocker 20W GSM Signal Mobile Alarm CDMA GSM

21 Channel Phone Signal Blocker 20W GSM Signal Mobile Alarm CDMA GSM

Output interface Shield band of frequency RF output power Output power/channel CDMA/ GSM 870-960MHz 36dBm 8dBm/30KHz(min) TD 2010-2025MHz 35dBm 5dBm/30KHz(min) DCS/PHS 1805-1920MHz 33dBm 2dBm/30KHz...

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