Line Length: None With Microphone: Yes Plug Type: Wireless Function: For Mobile Phone,Common Headphone Wireless Type: Bluetooth Model Number: mini earphone Support Apt-x: No Connectors: None Sensitivity: 123dB Waterproof: No Communication: Wireless Active Noise-Cancellation: Yes Support Memory Card: No Resistance: 9Ω Frequency Response Range: 20-20000Hz Is wireless: Yes Brand Name: FANGTUOSI Vocalism Principle: Dynamic Support APP: No Style: Ear Hook Volume Control: No Control Button: Yes