Instruction: Given the title, description, feature, price, and brand of a product and a set of target attributes, extract the value of each target attribute from the product information. Output the extracted value and the corresponding source (e.g., title or feature) denoting where the value is extracted.

Input:
Product title: A4Tech Rechargeable Lithium Ion Battery Pinpoint Optic Shuttle Series Wireless USB Mouse (G11-570HX-4)
Product description: Pinpoint Optic engine ensures seamless function. Receiver storage for maximum portability. Customizability of the shuttle key enables the same versatility as the G9 series.
Product feature: Long life, rechargeable Lithium Ion, Charging Status Indicator, battery stops charging automatically when fully charged, Operating Range Up to 15 Meters, Multi-Link receiver connects Up to 3 Sets KBs/Mice, DPI button: 5 adjustable 800-1000-1200-1600-2000 DPI, Customizable shuttle key allows added functions, Transmission: 2.4G, Wireless range: 15m
Product price: $19.99
Product brand: A4tech
Target attributes: Connectivity
Answer: attribute: connectivity
value: wireless
source: product feature
attribute: connectivity
value: wireless
source: product title