AN IMPROVED UPGRADE FOR AUDIO ENTHUSIASTS - Continuing with the success of Bowers and Wilkins Pi7 True Wireless Headphones, the Pi7 S2 has been introduced with significant improvements in performance, battery life, user experience, and color options HIGH-FIDELITY AUDIO IN A PREMIUM DESIGN - The Bowers & Wilkins Pi7 S2 wireless earphones feature 9.2mm dual hybrid drive units enhanced by individual amplifiers and advanced DSP, producing incredible audio to make your music and phone calls sound pristine BEST-IN-CLASS TECHNOLOGY - Driven by a 24-bit connection with Qualcomm aptX Adaptive Technology and a revised antenna design, the wireless earbuds provide improved and stable wireless connectivity up to 25m and deliver hi-resolution audio