cheapest 3g android dual sim mobile phone android motherboard wifi S78

Specifications 7 inch,MTK8312, Dual Core

RAM: 512MB ROM:4GB

android tablet pc 3g gps wifi bluetooth,

Battery:3000mAh,1024*600

 7 inch, Android 4.1, MTK8312 512mb Ram 4GB Rom , Dual camera,  android tablet pc 3g gps wifi bluetooth,1024*600,3000mAh    

General	Brand:	AVOSD
	Model:	S78
	Color:	Black,White
	Shell Material:	plastic housing
	Screen Size:	7"
	Resolution:	1024×600
	Screen Type:	Capacitive Screen, multi-touch
	Operating System:	Android 4.1
	CPU:	MTK8312,Dual core (Cortex A9), 1.5GHz
	GPU:	Mali-400 OPEN GL
	RAM Memory:	512MB DDR3 SDRAM
	ROM Capacity:	4GB
	Capacity extension	TF/Micro SD, up to 32G
	G-sensor	360deg gravity sensor
	Main features:	build-in 3G, 2G, phone call, 2*SIM, GPS bluetooth
Network	Wi-Fi:	yes 802.11b/g/n Wi-Fi
	3G:	Build-in 3G, WCDMA 2100
	2G:	Yes, GSM 850/900/ 1800/1900
	GPS	Yes
	Bluetooth:	Yes
	Wired Network:	Yes
Formats	Audio	MP3,WMA,MP2,OGG,AAC,M4A,MA4,FLAC, APE,3GP,WAV
	Video	AVI, RM, RMVB, MP4, MKV, WMV, MOV, DAT, VOB, PMP, MPEG, MPG, FLV, ASF, TS, TP, 3GP, etc.
	E-book	TXT, EPUB, PDF,WORD,EXCEL, PPT, etc
	Picture	JPG, JPEG, GIF, BMP, PNG
Application	Google Play (Android Market):	MSN, Skype, Gmail, Apps, etc
Language	OS Language:	Multi-Language
Camera	Front Camera:	0.3 MP
	Back Camera:	2.0MP Optional
Power	Battery Type:	Li-ion polymer
	Battery Capacity:	3000mAh
	Charge Time:	2 Hours
	Standby Time:	8 Hours
	Work Time:	3 Hours
	Power Adapter Input:	220V
	Power Adapter Output:	5V-2A
	Power Adapter Plug Size:	2.5
Slots and Ports:	Speaker:	Yes
	Microphone:	Yes
	Slots and Ports:	1*TF Card 2*SIM 1*DC power supply 1*Mini USB OTG 1*HDMI
Others	Certification:	CE, FCC
	Accessories:	1 X MiniUSB 1 X OTG 1 X User's Guide 1 X charger 1 X Earphone 1 X QC Passed
Dimesion/weight	189*108*9mm	290g

      Accessories:       Quality   Quality is the life of our factory.   We promise to use the best (original) components to ensure our product in high level.   All products will be carefully tested by our QC department.   Before tests, all Tablet PC has 24 hours aging test.    Normally, the process of checking TABLET PC is as follows:   1.Function Test: Outlook, screen calibration, Keyboard, Wi-Fi, Camera, flash and online video ,all Card Slot and USB Slot, G-Sensor, Bluetooth, Microphone, Speaker   2.We will test if there is any other special function such as GPS/3G.   3.Accessory Test: Battery, USB Cable, Earphone, Charger   Warranty:   All electronic products (included brand ones) may have problem after used for a period of time. We provide 1 year warranty for all products. Please contact me if you need our detail warranty term.   Payment:   Payment via TT (Bank transfer), Western Union, and PayPal are all acceptable.   Shipping:   We offer as many shipping options as possible, including DHL, UPS, TNT, FedEx and EMS, etc.   Service:   All emails will be answered within 24 hours.   Or pls kindly leave a message on Trade Manager, we will reply you ASAP.   Our factory:     Accessories we sell: