Features: 1) Supports both GSM and CDMA networks. 2) No need to dial area code when calling local numbers 3) Automatically connects to IP network when dialing long distance 4) Supports both English and Chinese menu 5) Incoming call reminder 6) 10 speed dialing number 7) Last call return 8) Caller ID and Hands free enable 9) Records history: auto saves the last 20 dialed/received phone numbers, and last 10 missed calls 10) Moblile phone board item and Industrial module item are optional 11) Use 3pcs rechargeable backup battery 12) Outside antenna 13) Incoming numbers and dialing numbers block enable 14)Cost rate setting enable Specifications: 1) Networks support: GSM900MHz/1800MHz GSM850/900/1800/1900MHz CDMA800MHz 2) Operation Temperature:-10--+45 4) Voltage: DC 5V 5) Adapter voltage: AC 220V+10% 50Hz?% 6) Stand by hours: 48 Hours 7) Talk time: 2-6 Hours 8) Charging time: 6 hours Packing: Product Dimensions: L165 x W198 x H75mm Gift Box: L265x W210 x H70mm Carton:L390 x W290 x H435mm 10pcs/carton N.W: 0.65KG G.W: 13.9KG