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Block unwanted phone calls | how to block a phone call

GSM 900 Cellular Phone Signal Repeater Booster With Screen + Antenna (Coverage: 150 Square meters around)
GSM 900 Cellular Phone Signal Repeater Booster With Screen + Antenna (Coverage: 150 Square meters around)
* Application place of mobile phone signal amplifier: 1) Small regions signal blind or weak signal area, such as underground or semi-underground place of business, basements, underground parking, etc. 2) Small-scale hot-spot signal Complaints areas, such as conference rooms, a small supermarket, small shopping malls, the office and small public areas, etc. 3) Traffic and large social influence areas, such as bars, cafes, dance halls, cafes, fitness clubs, leisure and entertainment, etc. 4) Home, office, luxury yachts, private cars, public security system and road safety management, etc. * Specifications: 1) Up-link frequency: 890-915MHz  2) Down-link frequency: 935-960MHz  3) Output Power: 10dB 4) Gain: 55 dB  5) VSWR: 6) Impedance: 50 Ohm  7) Power supply: AC 110-240V  8) Size: 198 x 109 x 25 mm  9) Coverage: 150 Square meters around 10) Indoor Antenna Length: 20cm 11) Outdoor Antenna Length: 48.5cm * The package contains: 1) 60dB GSM Cellular Phone Signal Amplifier 2) 9 dB outdoor antenna 3) 2 dB indoor antenna 4) 10m cable 5) Mounting accessories: AC power supply, user manual Specification:  Package Weight One Package Weight 3.35kgs / 7.39lb Qty per Carton 2 Carton Weight 4.60kgs / 10.14lb Carton Size 50cm * 24cm * 20cm / 19.69inch * 9.45inch * 7.87inch

block unwanted phone calls

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