Cell Boost Offers the finest signal boosting solutions for cell phone network. Equipped with a wide range of signal boosters and accessories manufactured using finest technology. Seguro SSG703(M): 2G (GSM) & 3G Mobile Signal Booster has an awesome capacity to increase signal strength. An excellent option for all offices, shops and home with network operators tuned into frequency band range of 900 and 2100 MHZ, the signal amplifier ensures increased voice clarity and enhanced data stability.