write aritcle for product reviews and buying guide

Write articles as these conditions below
1. Closed back headphones - Buying Guides (700 words)
- Please create 3-5 sub-topics
Product for review
2. Audio Technica ATH-M40x, Keyword: Audio Technica ATH-M40x (300 words)
3. Ultrasone Edition 8 S-Logic, keyword: Ultrasone Edition 8 (350 words)
4. Beyerdynamic DT 770 Pro, keyword: Beyerdynamic DT 770 pro (350 words)
5. Oppo PM-3, keyword: Oppo PM-3 review (300 words)

Total 2000 words

For all articles.
Please write in style short sentence and short paragraphs.
All product reviews have to include a list of pros and cons.
like below
Pros
1.
2.
3.
Cons
1.
2.
All product reviews must unique 100% and not spin and well research information of each product.
Grammatically correct.
Please write in style short sentence and short paragraph