Bose QuietComfort Ultra Headphones Completely Wireless Noise Canceling Headphones Spatial Audio Bluetooth Connectivity with Microphone Up to 24 Hours

【Voltage Compatibility】 When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction. 【Plug Type】 Our products use Japanese plug types (A or B type). Please use a conversion adapter if necessary. 【Important Note on Transformers and Adapters】 A transformer adjusts voltage to match your device’s requirements. A conversion adapter only changes the plug shape and does not adjust voltage. Using only a conversion adapter without a transformer may result in damage to the product. 【Liability】 We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer. Quiet and immersive, BOSE's best headphones ever: World-class noise canceling, revolutionary spatial audio that delivers more immersive sound regardless of content or sound source, and a higher-grade design using luxurious materials. . Additionally, CustomTune technology automatically analyzes the shape of your ears and optimizes the sound performance of the QC Ultra Headphones to match your ear shape, creating a customized sound experience. The world's best over-ear noise canceling headphones: even better active noise canceling than previous products. Use Quiet Mode when you want to focus on your work or music without being disturbed. If you want to enjoy content while paying attention to your surroundings, switch to Aware mode. You can hear your surroundings and have a conversation without removing the earcups. Immersion mode allows you to enjoy immersive audio with full noise cancellation. Clear and natural call voice: Achieve stress-free calls without being heard back. An innovative microphone system focuses on your voice while filtering out background noise, giving you and the other party a call that's incredibly clear. Elevated Design & Luxurious Comfort: Modern, sophisticated and stylish design. A cushion that gently wraps around your ears. Headband that evenly distributes pressure on your ears. We then added sleek metal arms to add a touch of sophistication to the design. Bluetooth Wireless Headphones: Advanced Bluetooth 5.3 provides a powerful and stable connection within 30 feet of your paired device. Bose SimpleSync technology also syncs sound from your QC Ultra Headphones and Bose Smart Soundbar, allowing you to watch TV at a different volume than those around you and enjoy quiet entertainment without disturbing the person sleeping next to you. can. Long-lasting playback: QC Ultra Headphones provide up to 24 hours of playback on a single charge (up to 18 hours with immersive audio). If you want to charge quickly, a 15 minute fast charge will give you up to 2.5 hours of playback (up to 2 hours with immersive audio). Easy access to music: Intuitive touch controls on the button or ear cup let you play/pause music, adjust volume, and switch modes and tracks. You can also answer calls without taking out your smartphone.