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: KitSound KSNDJBK Kitsound KSDJ DJ Over-Ear Headphones Compatible with Smartphones, Tablets and MP3 Devices - Black
Product description: Introducing the KitSound DJ Headphones They may be called the 'DJ Headphones', but with their solid bass and noise isolation, these cans have been made for anyone who's serious about sound. Great Sound Whether it was Beethoven composing his Fifth Symphony in the 1800s, the Beatles performing at the Cavern Club in 1961 or Paul Oakenfold bringing the sounds of Goa to the West in the 90s, music has long been instrumental in shaping history. Which is why at KS we believe it's important for all music to be showcased on decent audio equipment. The DJ Headphones' 50 mm drivers make for a beautifully fat sound and a special closed back design helps block out background noise, allowing you to mix seamlessly. Designed for DJs We know modesty is a virtue and everything, but we'd put money on the fact that DJs in particular will be impressed by the DJ Headphones' incredible bass, swivel ear cups and an extra long cable which comes with a 3.5 mm plug for Smartphones MP3 players and tablets such as your iPhone or iPad and a screw-on 6.3 mm plug adaptor, for amps and mixing decks. Ultra Comfortable Although they have a tough, robust exterior, it doesn't make the DJ Headphones any less comfortable to wear. The yielding inners of the ear cups and soft headband ensure ultimate comfort; so you can spend all day perfecting your set and all night playing out to the crowd. About KitSound We are craftspeople. We are musicians. We are KitSound and we all commit ourselves to achieving one shared goal: Bringing people closer to their music. By understanding music we stay true to its craft. Pure, rich, incredible sound. We settle for nothing less. Specifications: Fit: circum-aural, closed back Driver: dynamic 50 mm Connection: 3.5 mm plug, screw-on 6.3 mm adapter Frequency response: 20 Hz - 20 Hz
Product feature: Crystal clear notes with deep, punchy bass. Accurate soundstage, Soft spring loaded swivel ear cups, great or DJing, Extra long, heavy duty 2.2 m cable, Ultra comfortable - soft, luxurious headband and ear cups, 6.3 mm and 3.5 mm plugs for Smartphones and tablets, mixing decks and amps
Product brand: Kitsound
Target attributes: Style
Answer: attribute: style
value: over-ear
source: product title
attribute: style
value: ear cups
source: product description
attribute: style
value: ear cups
source: product feature