Boss Waza Air Guitar Headphones, Bluetooth Studio Headphones, Bluetooth 5.0 (HSP, HFP, A2DP, AVRCP), Audio codecs: AAC, SBC, Closed, Circumaural, Up to 24 hours of operation without cables, 50 mm Driver, Impedance: 32 Ohm, Sensitivity: 114 dB SPL / V, Frequency range: 15 - 28,000 Hz, Built-in microphone, Oval faux-leather ear pads, Cable on one side, Foldable, Weight: 260 g, Includes 2 cables (3 m and 1.2 m long), 6.3 mm adapter, USB charging cable and storage bag