Instruction: Using the product's title, description, features, price, and brand, identify and retrieve the values associated with a specified set of target attributes. Output the extracted values along with their respective sources (e.g., title or feature) indicating where each value was found.

Input:
Product title: BLU Studio C Mini D670L 4G HSPA+ Unlocked GSM Dual-SIM Quad-Core Android KitKat Smartphone - Orange
Product description: The Studio C Mini will impress you with it's design, color, and functionality. It's 1.3GHz Quad-Core processor will be great for multitasking.
Product feature: 2G: GSM 850 / 900 / 1800 / 1900 (SIM 1 & SIM 2) 3G: HSDPA 850 / 1900 / 2100, 4G: HSPA+ 850 / 1900 / 2100 (not LTE), 4.7" IPS LCD Capacitive Multi-Touchscreen, Android v4.4.2 (KitKat), Quad-Core 1.3 GHz Cortex-A7 Processor, Chipset: Mediatek MT6582, Mali-400 Graphics, 5 Megapixel Camera (2592 x 1944 pixels) w/ Autofocus, LED flash + Front-Facing 2 Megapixel Camera, Internal Memory: 4GB ROM, 512 MB RAM + microSD Slot Expandable up to 64GB
Product brand: BLU
Target attributes: Weight
Answer: attribute: weight
value: None
source: None