This 3G booster is a Dual Band Phone Booster used for amplifying both EGSM 900MHz and UMTS 2100MHz voice and data. This 3G repeater kit can cover up to 500 Sq. Mt area. It's delivered ready to use and comes with all required accessories. Ideal for home and offices use.
EGSM 900MHz is the frequency used for voice connection and GSM signal transmission(SMS/Voice Calls/GPRS/EDGE). It's used for GSM network and all mobile phones, including those older "non-smart" phones can support this standard.
UMTS 2100MHz is used for 3G internet data transmission. If you can browse the internet on your mobile phone, it's likely you are on 3G 2100MHz