Middle class. The product being sold is an expensive luxury gadget. There is no reference to necessity, practicality or safety. The idyllic location (blue skies, clear water) would suggest that the subject is on holiday; holidays, like gadgets, are expensive. The subject is also pursuing a hobby, which requires free time (something that most working class people don't have). The phrase 'this is your life' sells freedom and the phrase 'be a hero' sells status and recognition; both of these things come under esteem, according to Maslow's hierarchy needs.