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: Samsung SGH-T809/D820 Travel Charger
Product description: The Travel Charger is small enough to fit in a briefcase when traveling, but is also convenient enough to be used as a secondary charger at home or in the office.
Product feature: Compatible with SGH-D807, SGH-T509, SGH-T809, SGH-A707, SGH-T629, SCH-U420, SGH-T519, SCH-U710, SPH, 1 Year warranty
Product brand: Samsung
Target attributes: Wireless Charging Type
Answer: attribute: wireless charging type
value: None
source: None