LG Xpression C410 Qwerty Keyboard Slider Cellphone GSM Unlocked - Blue DOES THIS DEVICE NEED A SIM CARD: Yes it does Being that this device is GSM unlocked it will work on any GSM Network with an activated Standard size SIM Card (Not-included), Generally complimentary when activating an account card. WHAT NETWORK FREQUENCIES ARE SUPPORTED BY THIS DEVICE: GSM HSPA 2G bands GSM 850 / 900 / 1800 / 1900 3G bands HSDPA 850 / 1900 With Speed on HSPA of 3.6 download and 0.384 Upload Mbps, which give it the ability to roam in many foreign countries HOW LONG CAN I EXPECT THE BATTERY TO LAST ME: Well the battery has 1000mAh which in a Usage time frame means 3.5 solid hours of Talktime as well it has a Standby time of up to 340 hours before you need to recharge the battery TELL ME WHAT SOLID SPECKS ARE INCLUDED IN THIS DEVICE: Well it has a 230Mhz Single-Core Qualcomm QSC6270E CPU processor With an Internal storage of 256MB (63MB available to user) and External storage Until 32GB, as well as a 3" color display and only weighs (4.59 ounces). WHAT DOES UNLOCKED REALLY MEAN: Unlocked devices are compatible with GSM carriers the kinds that Use SIM Cards for Service like AT&T and T-Mobile as well as with GSM SIM cards (e.g. H20, Straight Talk, and select prepaid carriers) Unlocked Devices will not work with CDMA Carriers the kinds that don't use sim cards for service like Sprint, Verizon, Boost or Virgin