5 Bands Cell Phone Signal Booster for Home Office Use - Multiple Band Cellular Repeater Kit Boosts Verizon AT&T T-Mobile 3G 4G LTE Voice and Data - Support Multi Devices.

The 5-band signal booster is compatible with all US carries and supports multiple simultaneous connections to accommodate family members and guests.It automatically selects the best band for your device so that you always get the best performance.Indoor whip antenna connects directly to the booster.Omni-directional outdoor antenna receives signal from all cell towers around in all directions (no aiming required). Frequency Range: Band 2, Band 4, Band 5, Band 12/17, Band 13 Max. Gain: 70dB Max. Output Power: 20dBm MGC (Step Attenuation): ≧20dB / 1dB step Automatic Gain Control: ≧20dB I/O Port: N-female Impedance: 50 ohm Power Supply: Input AC100~240V 50/60Hz, Output DC 5V Dial *3001#12345#*, then press Call buttonClick Serving Cell InfoCheck Freq Band Indicator;Download and install "LTE Discovery" APP,Click ‘SIGNALS’ and check band number.