Material: Plastic Voice Assistant Built-in: No NFC Technology: No Sound Isolating: No Category: Earphones & Headphones Number of Drivers: 2 Charging Method: Cable Headphone Pads Material: Other Magnet Type: Other Driver Diameter: 40mm Impedance Range: Up to 32 Ω Bluetooth Version: 5.0 Package List: User Manual, Charger, USB Type-C Adapter Features: With Microphone, Active Noise Cancelling Is Wireless: Yes Support Memory Card: No Waterproof: No Resistance: 32Ω Line Length: 0m Frequency Response Range: 20 - 20000Hz Sensitivity: 115dB Plug Type: Line Type Function: For Internet Bar, for Video Game, Common Headphone, For Mobile Phone, HiFi Headphone, Sport Active Noise Cancellation: Yes Volume Control: Yes Control Button: Yes Vocalism Principle: Hybrid Technology Wireless Type: Bluetooth Connectors: USB Communication: Wireless Style: Over the Ear Certification: CE Origin: Mainland China Brand Name: Lenovo