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: NXG Wireless Bluetooth Mini Speaker Works With All iPhone iPad iTouch Blackberry Nexus Samsung and all Phones and MP3 Players. Speaker System Has Built In Rechargeable Battery That Lasts Over 5 Hours (Bluetooth White)
Product description: WIRELESS BLUETOOTH SPEAKER 3W A2DP+AVRCP 5-8 HRS PER CHARGE BLACK
Product feature: Product Type:Speaker System, Brand Name:Nxg, Manufacturer:NXG Technology, Product Model:NX-TRI-BT, Product Name:NX-TRI-BT Speaker System
Product brand: NXG Technology
Target attributes: Style
Answer: attribute: style
value: None
source: None