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: Phillips Head 5pc Micro Screwdrivers Set for Electronics and Jewelry
Product description: Aspen Express was founded with the idea to make quality watchmaker casing parts and watchmaker and jewelers tools available with competitive prices. Our companys mission is to improve upon what has been working in the watchmaker and jeweler supply industry and vetting out what needs to be corrected so that the highest level of quality can be delivered to our suppliers at the best available pricing. We believe in maintaining a healthy level of quality control and developing long term relationships with our customers and vendors. Aspen Express offers a wide range of products that can be used by a wide range of users, from the DIY starters to industry professionals.
Product feature: Phillips head mini screwdrivers, 5 size heads: 3.5mm, 3.0mm, 2.5mm, 2.0mm, 1.5mm
Product price: <div class="a-section a-spacing-none"
Product brand: by Aspen Express
Target attributes: Power Type
Answer: attribute: power type
value: None
source: None