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. The ‘zero calls drop’ device has been specifically designed to fit into your room décor and is easy to operate. SSG703(M) series come with a one-year replacement guarantee and quick installation guide.