Description: Clear voice: Equipped with a built-in sound card, USB headset provides a crystal clear audio quality, bringing you a pleasant call experience. The unidirectional noise-cancelling microphone that only picks up sound from a specific side or direction can reduce unwanted background noise well. Connections: The microphone features a USB plug and a 3.5mm jack audio cable, meeting with various connecting needs such as mobile phones, tablets, laptops and PC. Moreover, the flexible length(up to 2.5m) of cable gives you freedom when wearing the wired headset. Easy to Control :With a control box on the USB Plug, you can get easy access to inline volume control and Mic/Speaker Mute. Adjustable headband and rotatable ear pads can fit your head well. The 270range of rotation that the microphone provides allows you to adjust it to the most suitable position and the side you prefer (microphone on the left/right). Comfortable: Since the PC headset has a weight of 3.7 ounce, there will be no restraint pressure from all-day wearing. The high elastic and breathable ear cushion brings you all-day comfort. Compatibility: This headset is easy to use with a plug and play setup. And it is suitable for multiple devices and systems, fit for Windows,fit for iOS, fit forAndroid, fit forTablet. Specification: Product name: computer headset Color: Black Material: ABS, PU Type: 123 1#U1 line control 2#U2 line comtrol 3#U2+ line control Interface type: USB 2.0 and 3.5 mm connector Horn diameter: Medium 40 mm Speaker impedance: 3292 Speaker frequency response: 20 Hz-20 KHZ Speaker sensitivity: 115 dB Rated output power: 41 MW Large output power: 84 MW Noise level: S-78 dBA Dynamic range: 278 dBA Distortion rate THD: S0.1% Stereo crosstalk: <-52 dBA Microphone specifications: 6*5mm Microphone sensitivity: -42dB Microphone directivity: omnidirectional Microphone impedance: <2.22 Frequency response: 50Hz- 15KHz Headphone wire length: about 2.5M / 98.4inch Package Includes: 1pc*headset 1pc*English manual