V-Moda M-200 ANC, Wireless headphones@+, With active noise-cancelling technology, Closed-back, over-ear design, Bluetooth 5.0, Up to 20 hours of operation per charge, Qualcomm aptX HD and AAC audio codecs, 40 mm drivers, Sensitivity: 101 ± 3 dB at 1 kHz (1 mW), Impedance: 30 ohms, Frequency response 5 Hz - 40 kHz, Weight: 320 g, Includes audio cable, USB cable, case, and aeroplane adapter