Bowers & Wilkins PI4 In-ear Noise-canceling Wireless Headphones Silver Surround sound amplifier Recommended Amplifier Requirements: 80 –

Recommended Amplifier Requirements: 80 – 200 W

Supports MM/MC

The Heresy IV offers unparalleled sound quality from a relatively small speaker

Sensitivity (1W@1M)

DTS Digital Surround**

Bowers & Wilkins PI4 In-ear Noise-canceling Wireless Headphones Silver Surround sound amplifier Recommended Amplifier Requirements: 80 –Designed for Movement Customized 14mm drivers pack full sound in a small space. Designed by the same team behind our 800 Diamond Series speakers used in Abbey Road Studios, the drivers ensure you stay immersed in music wherever you go. Dont miss a thing No matter what you're listening to, watching or playing, hear what you were meant to hear. The new aptX codec gives you pure, unmatched audio, whether you're traveling, moving, or standing still in the