Instruction: Rank the products A, B, C, ... based on their relevance to the provided query, and produce a ranked list with the most relevant product positioned at the top of the list.

Input:
Query: bluetooth reciever and mic
Product list:
A: Bietrun Wireless Microphone, 160 ft Range, UHF Metal Dual Handheld Dynamic Mic Karaoke System with Rechargeable Receiver, 1/4&1/8Output, for Amplifier, PA System, Party Singing, Karaoke, Church
B: Alto Professional Bluetooth Total | Professional XLR Equipped Rechargeable Bluetooth Receiver For Mixers and PA Systems
Answer: B,A