Attributes . 1.8 (2G) GHz, 1.8 (4G) GHz, 1.8 (B3) GHz, 2.1 (3G) GHz, 2.1 (B1) GHz, 2.6 (4G) GHz, 2.6 (B7) GHz, 800 (4G) MHz, 800 (B20) MHz, 850 (3G) MHz, 850 (B5) MHz, 900 (2G) MHz, 900 (3G) MHz, 900 (B8) MHz . Names