Lenovo ThinkBook 14 G4 IAP Laptop 35.6 cm (14") Intel® Core™ i7 1255U 16 GB DDR4 SDRAM 512 GB SSD Wi Fi 6 Windows 11 Pro Grey Bluetooth Tag 45 inch OLED display allows you 45 inch OLED display allows you to use your phone like normal HSP Headphones Driver type Dynamic Ear coupling Circumaural Headphone frequency 20 20000 Hz Impedance 32 Ω Headphone sensitivity 99 dB Driver unit 4 cm Noise canceling type Active Noise canceling Yes Microphone Microphone type Built in Number of microphones 6 Control unit Control unit type On ear control unit Control type Buttons Battery Battery capacity 800 mAh Standby time 320 h Wireless charging No Charging source USB Continuous audio playback time (ANC off) 30 h Continuous audio playback time (ANC on) 26 h Talk time (ANC on) 26 h Talk time (ANC off) 30 h Weight & dimensions Weight 330 g Width 180 mm Height 190 mm Depth 70 mm Packaging data Package width 188 mm Package height 216 mm Package depth 90 mm Package weight 628 g Quick start guide Yes Packaging content Quick start guide Yes Pouch Yes Ear pads Yes Power USB Type C charging port Yes Supplier features Material Aluminium 2 2242 PCIe 4 Additionally