2G 3G 4G Mobile Phone Amplifier Indoor Signal Booster by HIPHEN SOLUTIONS Ad details Frequency: 900mhz/2100mhz/2600mhz Power: 27db Gain: 75db Color: white Seclusion: > 80db AC: 220v impedance: 50Ω Size: 25*19*2.2cm temperature: -10 - 60 ℃ Supply Ability Supply Ability: 20000 Piece/Pieces per Month signal booster WE CAN SUPPLY AND INSTALL IN A