1. Turn off the world at the touch of a button The Tune 660 BTNC allows you to turn the noise cancellation on or off directly on the ear cup to fully immerse yourself in the sounds. 2. Dive deep into the music world, enjoy crystalclear sound, and feel the bass – this is the unique Pure Bass Sound technology. 3. Ideal for traveling. Up to 44 hours of nonstop music even with noisecanceling activated. 4. Travel light with minimal luggage thanks to the headphones' lightweight yet durable materials – when not in use, the onear headset folds up neatly for easy storage. 5. Contents: 1 x Tune 660BTNC active noisecanceling headphones in black with wired or Bluetooth 5.0 connectivity, builtin microphone and hands function, foldable design. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.