Style: Ear Hook Certification: CE Vocalism Principle: Balanced Armature Origin: CN(Origin) Control Button: No Active Noise-Cancellation: Yes Communication: True Wireless Volume Control: Yes Sensitivity: 120dB Wireless Type: bluetooth Is wireless: Yes Line Length: 0m Support APP: No Number Of Drivers: 2 Plug Type: NONE Impedance Range: up to 32 Ω Connectors: USB Earcups Type: Semi-open Bluetooth Version: 5.0 Codecs: sbc Support Memory Card: No Resistance: 32Ω Waterproof: Yes Frequency Response Range: 20 - 20000Hz With Microphone: Yes Features: waterproof Charging Method: Charging case