Bose QuietComfort Ultra Wireless Noise Cancelling Bluetooth Headphones take everything music makes you feel to new highs. Breakthrough spatial audio makes your music feel more immersive than ever before. And world-class noise cancellation that’s quieter than its predecessors to avoid background noise. CustomTune technology upgrades your sound even more by analyzing your ear’s shape and adapting the audio performance for personalized sound, shaped to you. Made of quality materials, the QC Ultra headphones have a soft, comfortable fit.