Specification

Brand Name: GOBOOST
Model Number: GB21
Cellular Amplifier: GSM 2G 3G 4G Repeater
Band: Dual Band 2G 3G 4G Cellular Signal Booster
Gain: 70dB
Output Power: 21dbm
Signal Booster: Repeater gsm 900 1800 2100mhz 1900mhz 850mhz
Frequency 1: 1800mhz+2100mhzfor 2G 4G Signal
Frequency 2: 900mhz+1800mhzfor gsm 2G lte 4G signal
Frequency 3: 900mhz+2100mhzfor gsm 2G 3G signal
Frequency 4: 850mhz+1900mhzfor gsm 2G 3G signal
Bandwidth: 25M+60M
Improvement: 3G 4G Voice 3G 4G Internet
RF Connector: N-Female
Feature: 3G/4G LTE network of ClaroMovistarEntelTigo
Work for: Band1 and Band3 DCS 1800MHz cell phones signal
Power Supply: AC 100~240V 50/60Hz DC 12V 2A
Material: Blue Metal Outer Casing
Accessory: Power adapter