Instruction: Evaluate each product title in the given list, assess its relevance to the given query, and then arrange the products in descending order of relevance, with the most relevant product at the top of the ranked list.

Input:
Query: A lightweight one with long battery life and quick processor with adequate storage. One that can be transported easily with at least a 13 inch screen and backlit keyboard.
Product list:
A: viozon Monitor/Laptop Mount, Single Gas Spring Arm Desk Stand/Holder for 17-32" Computer Monitor, Extra Laptop Tray Fits 12-17" Laptops/Notebook (1S-Pro)
B: Backlit Bluetooth Keyboard Compatible with Mac OS/iOS/Windows, seenda Multi Device Ultra Slim Rechargeable Keyboard with 7-Colors Backlit for Laptop, Computer, Windows, Mac OS System, Rose Gold
Answer: A,B