The Bowers & Wilkins Px7 S2e are high-performance wireless noise-cancelling headphones featuring 24-bit DSP, "evolved" from the flagship Px8. They offer 30-hour battery life, superior 40mm drivers, and 6 microphones for enhanced, ANC and crystal-clear calls. Known for a premium, comfortable fit with memory foam ear pads, they support aptX Adaptive and offer 7 hours of playback from a 15-minute charge