B08Q79WDCP LOYALHEARTDY Mobile Phone Signal Booster Cell Phone Signal Booster Amplifier Repeater Antenna 4G 2G 3G 850/1900MHz Dual Band

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Mobile Phone Signal Booster Our booster is able to enhance the signal of about 150 square meters indoors.
Cell Phone Signal Booster The outdoor signal requires more than 2 squares. If there is a signal outside and you can make a normal call, then using our products is fine.
Cell Phone Signal Amplifier Frequency(MHz)?CDMA: UL:824-849 MHz DL: 869-894 MHz.PCS: UL: 1850-1910 MHz DL: 1930-1990MHz
Gain(dB)? 65 70.Band flatness(dB)? less than 3.Output Power(dBm)? 23 27.ALC? 31
VSWR? less than 2.5.Group delay(uS)? less than 1.Impedance? 50ohm.Working tempreture? -25~+55 degree