Instruction: Parse the product information to locate the target attribute, and then provide the extracted value of the target attribute and its source in the output, specifying None if the attribute is not present.

Input:
Product title: LG Optimus Extreme Android Prepaid Phone (Net10)
Product description: Get in touch with your loved ones in an instant with the Net10 LG Optimus Extreme L40G NTLGL40GP4 Prepaid Phone. Featuring its Android operating system, this smartphone will surely bring fun and excitement to your entertainment on the go as it gives you a direct access to tons of free apps from Google Play. With its touchscreen display, you can seamlessly navigate and switch between programs. You can even capture great moments in outstanding quality using its 5MP camera. For high-speed Internet connection, this phone is 3G capable. Plus, it has a microSD card where you can insert an SD card for data storage. Order the Net10 LG Optimus Extreme L40G NTLGL40GP4 Prepaid Phone now! *SIM Card not included
Product feature: Android 4.0 (Ice Cream Sandwich) with 800 MHz Processor, 4 inch Touch Screen, 5 MP Camera With Zoom & Flash, Battery Talk Time up to 8 hours; Standby Time up to 13 days, Includes Battery, Charger, 4GB microSDTM Memory Card, Activation Card, Service Guide and User Manual
Product brand: LGIC
Target attributes: SIM Slots
Answer: attribute: sim slots
value: None
source: None