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: Neewer® NW-GP-1 Portable Mini Electric Guitar Plug Headphone Amp Amplifier (Classic British Distortion Effect)
Product description: Note: Guitar is Not included, Features:, Classic british distortion effect guitar plug headphone amp amplifier, Compact and light-weight design, easy to carry, Designed with 3 knobs: level, Tone, Gain, 6.35mm/0.25in plug, just plug into guitar jack, no need of installation, Uses the phones jack to connect headphones, portable speakers, mixer or recorder, Aux in jack lets you connect an external audio device to this jack, The perfect solution for practice guitar without disturbing others or be disturbed by others, Powered by 2 pieces AAA batteries, Specifications:, Power: 2 pieces AAA batteries, Dimensions: 3.9 * 3.46 * 0.9inch / 100 * 88 * 23 mm, Product Weight: 43g (not including batteries), Package Contents:, 1 * Guitar Plug Headphone Amp, 2 * AAA Batteries
Product feature: Classic british distortion effect guitar plug headphone amp amplifier, Compact and light-weight design, easy to carry, Designed with 3 knobs: level, Tone, Gain, 6.35mm/0.25in plug, just plug into guitar jack, no need of installation, Uses the phones jack to connect headphones, portable speakers, mixer or recorder
Product brand: Neewer
Target attributes: Type
Answer: attribute: type
value: None
source: None