... M740 OSwince 6.0 AndroidFunctionexternal 3G wireless network, WCMDA, CDMA, TD-SCDMA ( optional )WIFI wireless network, support 802.11a/b/n/gmobile ... 802.11a/b/n/g wireless networkbuilt in 3G, WCMDA, CDMA, TD-SCDMA wireless networkbuilt in 10-100M wired ... : silverbattery: 2000 mAh lithium batterypower: 9V 2AAccessoriescharger, RJ45 connection cable,specifications,warranty card, USB cable, earphone