Foldable aluminium noise-canceling wireless headphones in brown. Features Adaptive active noise cancellation. Certified for Google Fast Pair, Made for iPhone (MFi), and Microsoft Swift Pair. · Adjustable padded leather headband · Bluetooth 5.1 streaming · Voice assistant button · Battery life: Up to 38 hours with Bluetooth and Adaptive noise cancellation · Battery life: Up to 50 hours with Bluetooth · Fully charged in 120 minutes · 40 mm electro-dynamic titanium driver with neodymium magnets · Frequency Range: 20-22,000 Hz · Integrated MEMS voice microphone · Aluminium carrying case · 3.5 mm audio cable · USB-A to USB-C charging cable · Headphones: H165 x W185 x D80 mm / 323 g each · Case: H180 x W200 x D63 mm / 500 g Supplier color: Chestnut