Dr. Tech Vehicle Signal Booster LTE 4G 777/787 MHz Cell Phone Signal Booster Repeater Amplifier with antenna (LET IT BOOST UP THE STRENGTH FOR YOUR CELLPHONE!!!) Frequency: 1850-1910MHz Gain: Uplink = 746-756 Downlink= 777-787 Max Output Power Uplink: + 10dBm Noise Figure 3.5 dB nominal Power Requirements: 12 V, 0.5-1.5 a max