Brand Name: Bluedio Vocalism Principle: Dynamic Control Button: No Active Noise-Cancellation: Yes Communication: Wireless+Wired Volume Control: Yes Style: Over the Ear Sensitivity: 115dBdB Wireless Type: Bluetooth Is wireless: Yes Line Length: 1.2mm Support APP: Yes Function: For Mobile Phone Function: HiFi Headphone Function: Sport Function: Common Headphone Plug Type: Line Type Connectors: Type c Model Number: T7 Bluetooth Version: 5.0 Support Memory Card: No Driver Diameter: 57mm Resistance: 16ΩΩ Waterproof: No With Microphone: Yes Features: With Microphone Charging Method: CABLE Colour: Black,Red,Yellow Bluetooth music/talk time: About 32 hours Charging time: About 2 hourrs Market to sell: 2019 Bluetooth version: 5.0 Driver units: 57mm Headphone net weight: 290g Support Apt-x: No warranty: 6 months