Two-minute reviewThose people and businesses that are protective of their liquid assets will probably exclude the Danish luxury brand Bang & Olufsen from their product choices.Bang & Olufsen has a long and impressive history of delivering excellent audio technology for those that care more about quality than price, and its new Beocom Portal headphones haven’t strayed from that path.However, compared with gaming-orientated or audiophile-luring headphones, these have been designed more with hybrid workers in mind. And are being promoted