Why Sony's Walkman and its Portable Devices Failed Vs I-Pod and Apple's Devices | Investuition

In this video we are going to understand why Sony's walkman and its portable devices failed against I- Pod and Apple's portable devices. We are going to understand why sony walkman which was once, most sought portable music and mp3 player, lost its fame. How apple's innovation made it defeat its toughest technology competitor sony and make place in new and emerging markets as innovation giant.