Instruction: Parse the product information to locate the target attribute, and then provide the extracted value of the target attribute and its source in the output, specifying None if the attribute is not present.

Input:
Product title: V-MODA Crossfade LP2 Over-Ear DJ Studio Bass Headphones - Metal - Matte Black (Certified Refurbished)
Product description: The matte black Crossfade LP2 Special Edition from V-MODA include the gunmetal shield kit, an exoskeleton case with carabiner, Kevlar-reinforced SpeakEasy 1-button mic cable, a Kevlar-reinforced extended audio cable, a 1/4" adapter, and a cleaning cloth. It can be used for audio playback, as well as for gaming or in VoIP applications., Amazon Renewed is your trusted destination for pre-owned and refurbished products that are inspected and tested to work and look like new. A Renewed supplier who is Amazon-qualified and performance managed, performs a full diagnostic test, replaces any defective parts, and thoroughly cleans the product. The products will have minimal to no signs of wear, no visible cosmetic imperfections when held 12 inches away, and may arrive in a brown or white box with relevant accessories that may be generic., This product comes with a minimum 90-day supplier-backed warranty An Amazon qualified supplier will provide a replacement or refund within 90 days of your receipt if the product does not work as expected. The warranty is in addition to Amazon's standard return policy. Learn more, Shop for smartphones, computers, laptops, tablets, home and kitchen appliances, game consoles, office products, and more on Amazon Renewed .
Product feature: Type: Over-Ear Circumaural, Frequency Response:5 Hz to 30 kHz, Sensitivity:105 dB @ 1 kHz, 1 mW, Microphone Sensitivity: -42 dB @ 1 kHz
Product brand: V-MODA
Target attributes: Wireless Type
Answer: attribute: wireless type
value: None
source: None