Instruction: First, identify the target attributes from the provided list. Then, scan the product title, description, feature, and brand to extract the values associated with each target attribute. Finally, create a list of dictionaries, each containing the extracted attribute, its corresponding value, and the source where it was found.

Input:
Product title: ecomwize Super Bass Portable Rechargeable Mini Hi-Fi Bluetooth Speaker for iPhone, Android Phone, Laptop, Tablet, iPod, Etc.Yellow
Product description: Brand new wireless bluetooth speaker for MP3 players, PC and cell phones
Product feature: Speaker easy to link with Bluetooth Player, Mobile Phone, PDA, Tablet, PC & Laptop, Speaker supportMicro SD / TFcard, FM radio, support MP3, MP4 file format, Onboard FM radio with radio station auto scan, High capacity 520 mAh rechargeable Li-ion polymer battery, for longer music play, USB cable with AUX audio line for both power supply and data transfer
Product brand: ecomwize
Target attributes: Configuration
Answer: attribute: configuration
value: None
source: None