... : LED backlight Battery: rechargeable li-ion polymer battery (3.7 V/4,000 mAh) Expansion slots: SIM/SAM ... 1800/1900MHzWireless LANWiFi: muRata IEEE802.11b/gWireless PANBluetooth: Class II, 3-5 MPSAMBaud rate: 9600, 19200, 38400, 43000, 56000, ... batteryAccessoriesStandard: battery, charger/adapter, data cables, stylus, carrying case, hand strap,2G micro SD (TF) card, protective film Optional: cradle, ...