Style: Headphone Communication: Wired Connectors: 3.5mm Wireless Type: None Vocalism Principle: Dynamic Control Button: Yes Volume Control: Yes Active Noise-Cancellation: No Function: For Internet Bar, Monitor Headphone, for Video Game, For Mobile Phone, For iPod, HiFi Headphone. Sensitivity: 122±3dB Frequency Response Range: 8-25000Hz Line Length: 2.1m Resistance: 9Ω Waterproof: No Support Memory Card: No With Microphone: Yes Speaker impedance:32ohm Mic impedance: 2.2kohm