Brand Name: Mixcder Vocalism Principle: Dynamic Control Button: Yes Active Noise-Cancellation: Yes Communication: Wireless+Wired Volume Control: Yes Style: Headphone Sensitivity: 94dBdB Wireless Type: bluetooth Is wireless: Yes Max Output: 30mW Line Length: 0m Support APP: No Function: For Mobile Phone Function: For Internet Bar Function: for Video Game Function: Monitor Headphone Function: HiFi Headphone Function: Sport Function: Common Headphone Number Of Drivers: 2 Plug Type: Line Type Package List: User Manual Package List: Carrying Bag Package List: Charging Cable Package List: Detachable Audio Cable Impedance Range: up to 32 Ω Connectors: 3.5mm Model Number: E9 Earcups Type: Sealed Headphone Pads Material: Memory Foam Bluetooth Version: 5.0 Codecs: SBC Support Memory Card: No Driver Diameter: 40mm Resistance: 32ΩΩ Waterproof: No Frequency Response Range: 20 - 20000Hz Total Harmonic Distortion: 0.3<3%% With Microphone: Yes Features: Active Noice Cancelling Charging Method: Cable Magnet Type: Other Bluetooth Distance: 33ft(outdoor) / 49ft(indoor) Battery: 500mAh Music Time: About 35 hours (ANC OFF) Playing Time: About 30 hours (ANC ON) Charging Time: About 2.5 hours Headphones: Wireless Headphones Feature 1: Bluetooth Earphone Feature 2: Bluetooth Headphones Feature 3: Wireless Bluetooth Headset Feature 4: Bluetooth Headset Feature 5: Bluetooth Wireless Headphone