Instruction: Given the title, description, feature, price, and brand of a product and a set of target attributes, extract the value of each target attribute from the product information. Output the extracted value and the corresponding source (e.g., title or feature) denoting where the value is extracted.

Input:
Product title: FastTouch(TM) 7 INCH DUAL CAMERA TABLET PC - BLUE 4GB, GOOGLE ANDROID 4.1, ALLWINNWER A13 BOXCHIP CORTEX A8, 512MB RAM, MULTIILPE TOUCH SCREEN, WIFI, SKYPE, NETFLIX MOVIES
Product description: 7" capacitive Screen Tablet Android 4.2, 1.2GHz 512MB 4GB Webcam Wifi Model: CHR-2419 Webcam: 1.3MP Wireless: Wifi 802.11b/g/n 3G: Supporting External 3G Modem G-sensor: Support RAM: DDR3 512MB ROM: 4GB Bluetooth: No GPS: No Power Battery: 3000mAh Li-ion Battery Working Time: 3-4hours Power Device: AC Adapter Input 100/240V Device Specifications Color: White Dimensions: 7 x 0.25 x 4.75 inches Net Weight: 275g Software Support: Office: Support MS Office Word, PPT, Excel Gaming: Built-in 3D Accelerator. Support 3D gaming Email: Gmail, POP3/SMTP/IMAP4 Multi-Media Video: AVI, MP4, FLV, 3GP, MKV, WMV etc. Audio: MP3, WMA, OGG, AAC, WAV FLAC etc. Picture: JPG/BMP/PNG/GIF E-Book: PDF, TXT etc. Ports 1 x Mini USB 1 x TF Card Slot 1 x DC Jack 1 x Earphone Jack What's in the box? 1 x Tablet PC 1 x Charger 1 x User's Manual 1 x Micro USB Cable 1 x Screen Protector 1 x Stylus Pen This is a FastTouch(TM) product. Thanks for shopping with us.
Product feature: 7 Inch Android 4.2 Operating System, Boxchip A13, Cortex A8, Capacitive Multitouch Screen, Built in WiFi, Dual Cameras, YouTube, Facebook, Watch Netflix Movies, Twitter, iReader and many more pre-installed Apps, Light Weight, Easy to Use, Fluent Screen., FastTouch(TM) is the Original Brand, Be aware of counterfits., 30 Days Full Money Back.
Product brand: FastTouch(TM)
Target attributes: Battery Life
Answer: attribute: battery life
value: None
source: None