A:Answer The K40 is compatible with the following bands:
Wireless Compatibility Bluetooth, Wi-Fi, Wireless A, Wireless AC, Wireless B, Wireless G, Wireless N
Network Type CDMA, GSM
4G LTE Band 12, 13, 2, 4, 5, 66
GSM 2G Frequency 1800, 1900, 850, 900
CDMA 2G Frequency 1900, 800