新品のイヤホンですが、箱は開けていません。 Oneplus 製品を購入したときにヘッドフォンを受け取りました。 私はまだ Oneplus の OnePlus Bud 2 を使用しているので、必要ありません [概要] - Dual Dynamic Drivers - Experience deep bass and crisp highs with 10.4mm woofers and 6mm tweeters, enhanced by BassWave? technology. - Personalized Audio Experience - Tailor your audio experience with OnePlus Audio ID 2.0, which creates a custom sound profile based on your unique hearing. -Silence the World: Adaptive Noise Cancellation - Block out distractions with up to 49dB noise reduction, which actively adapts to your environment. Crystal Clear Conversations - Enjoy superior call quality, even in noisy conditions, with AI Clear Call Technology. - Long-Lasting Listening - Stay powered with up to 44 hours of battery life, ensuring your music goes on as long as you do. Elegant Design - Ergonomically designed for comfort, available in Metallic Gray and Splendid Blue, complementing your style.