Lenovo Yoga (GXD1A39963) 14 hours playback with active noise cancellation off Headphone Driver: 40mm Neodymium Frequency Range: 20 Hz – 20 kHz Impedance: 32Ω Max. Input Power: 30 mW Sensitivity (SPL): >111 dBm ± 3 dBm THD+N at -3 dBFS: -77 dB Dynamic Range: 110 dB Battery Charge Time : <3 Hours Active Noise Cancellation (ANC): Hybrid ANC, Up to -30 dB, 4 out of 6 microphones for ANC Weight: Starting at 0.47 lbs (214 g) Headphone Type: On-Ear Design, Fold-Flat Engineering Microphone Type: Boomless Interface: Bluetooth® 5.0, USB Digital Audio Cable Length: USB-C to USB-A: 1.3 m Braided Cable