Mobile World Congress may be the world’s largest gathering for the mobile industry, where some of the biggest electronics players and telecoms firms in the world show off their latest innovations, but its been through several evolutions in its 37 year history. CNBC’s Arjun Kharpal and Tom Chitty reflect on how this year’s event compared to others in the recent past. 🎧 CNBC’s Beyond the Valley Listen wherever you get your podcasts