Some units may be Asian Spec, which will affect the wording on the packaging. Product and functionality are the exact same as US Spec. Offering up to 40 hours of battery life, the Beats Solo3 wireless headphone delivers the best, emotionally charged listening experience you’ve come to experience from Beats—without the hassle of cables. At the heart of the Beats, Solo3 is the Beats sound. The headphone delivers premium playback with fine-tuned acoustics that maximizes clarity, breadth, and balance. The comfort cushion ear cups buffer outside noise for further audio immersion, so you can experience music the way it was meant to be heard. Beats and Apple are changing the way you listen to music with the introduction of Apple W1 technology. The W1 chip allows you to put the music on repeat and stay unplugged for almost two straight days on a single charge. With Fast Fuel charging, you don’t have to stop when the battery runs low. A five-minute charge provides three additional hours of playback to quickly get you back on track.