"When hiring financial advisors, large banks and financial institutions are looking for finance-savvy candidates who have the knowledge, experience, and sales skills to grow a substantial clientele base. In an interview, be ready to participate in a sales role-play with a hypothetical customer as well as discuss how you've attracted new clients in the past. While no formal degree is necessary, a background in business, sales, or finance is preferred."
What is Bluetooth?
Bluetooth is a short-range wireless technology that operates on 2.4 GHz wireless band that is primarily used to connect computers to wireless devices like mice and keyboards, mobile devices or printers to create a peer to peer Personal Area Network
I think a great way to explain Bluetooth, especially to someone older, would be to refer to it as like wireless USB. It serves all the same functions in connecting devices over a relatively short distance.