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: outdoor bluetooth speakers 500w
Product list:
A: ION Audio Block Rocker Plus - Portable Bluetooth Speaker 100W W/Battery, Karaoke Microphone, AM FM Radio, Wheels & Telescopic Handle and USB Charging
B: Pyle 500 Watt Outdoor Portable BT Connectivity Karaoke Speaker System - PA Stereo with 8" Subwoofer, DJ Lights Rechargeable Battery Microphone, Recording Ability, MP3/USB/SD/FM Radio - PWMA325BT
C: 500W Karaoke Wireless Bluetooth Amplifier - 4 Channel Stereo Audio Home Theater Speaker Sound Power Receiver with AUX IN, FM, RCA Subwoofer Speakers OUT, USB, Microphone IN with Echo - Pyle PTA44BT
Answer: B,A,C