Factory refurbished product. Hardly used. Features: Bluetooth, Noise Canceling, Microphone, Waterproof, Splashproof, True Wireless (Left/Right Separation) Connection Type: Wireless Color: Black Well-regarded, immersive sound Comfortable and secure fit Splashproof Simple touch controls SPOTIFY TAP Up to 5 hours of continuous playback Original price: ¥24,000 Experience Bose's immersive audio and a comfortable, stable fit. Bose's unique acoustic ports and premium drivers deliver clear, balanced music playback regardless of volume. Stylish design that fits perfectly in your ear. The unique ear tips prevent ear pain and prevent them from falling out. Sport Earbuds stay in place no matter how you move, and are comfortable even after long hours of use. Patented acoustic ports and premium, high-efficiency drivers deliver surprisingly powerful sound from a small body. Bose's unique active EQ, which optimizes according to volume, automatically adjusts bass and treble, so music, videos, and voices always sound balanced. In addition, the StayHear Max tips fit snugly in your ear, allowing you to hear the impactful, emotional bass of your music, and blocking out surrounding noise, so you can focus on your music and exercise. Three sizes of StayHear Max tips are included, so you can find the size that fits your ears. All parts that touch your ears are made of soft silicone. The design ensures that pressure is evenly distributed throughout the ear when worn, so as not to put pressure on the most delicate parts of the ear. In addition, the unique umbrella-shaped tips and very soft wings ensure a secure fit, no matter how much you shake your head or jump. No ear hooks are needed. Up to 5 hours of continuous playback on a single charge. Charging starts when stored in the included charging case. Fully charging the charging case allows you to fully charge the earbuds twice, extending battery life by up to 10 hours. Even if the battery runs out of power while you're on the go, a 15-minute quick charge provides up to 2 hours of use.