Specifications: Product Number: 981-000907 Dimensions: Length: 138 mm Width: 94 mm Height: 195 mm Weight: 370 g Charging cable length: 1.8 m Technical Specifications Headphone Driver: Hybrid mesh PRO-G 50 mm Magnet: Neodymium Frequency Response: 20 Hz - 20 kHz Impedance: 32 Ohms Sensitivity: 91.7 dB SPL @ 1 mW & 1 cm Materials Fork: Aluminum Headband: Steel Ear and head pads: Memory Foam Leatherette Extra Ear pads: Memory Foam Cloth Pro Microphone Microphone Pickup Pattern: Cardioid (Unidirectional) Type: Electret Condenser Size: 6 mm Frequency Response: 100 Hz-10 KHz Wireless Battery Life (rechargeable): up to 20h 1Battery life may vary based on user and computing condition. Up to 20h battery life is based on headset volume set to 50%. Wireless range: up to 15 m Connection Type: 2.4 GHz LIGHTSPEED Warranty Information: 2-Year Limited Hardware Warranty