True Wireless In-Ear Headphones are becoming very popular, but many sacrifice sound quality for wireless convenience. Not so with the PI5 from Bowers & Wilkins. The PI5 is an in-ear headphone capable of providing world-class sound quality and impressive technology. The soundstage isn’t a big concern with most Bluetooth earphones. The PI5 is one of those true wireless systems with a good linear sense of width which expands naturally. When you listen with the PI5, you enjoy a sense of things being in the right place without being muddied, resulting in clarity with instruments and effects.