Product DescriptionLogitech USB Headset H540. Plug into high-performance audio for PC calls, music, and more. Simply insert the USB and instantaneously experience crisp, digital stereo and crystal-clear calls.From the Manufacturer Features Logitech USB Headset H540High-performance for PC calls and musicBring your Internet calls, music, movies and online videos to life with this precision-audio stereo headset. Simply plug the USB cord into your desktop or laptop computer to instantly immerse yourself in pure, rich digital sound.   Plug-and-play USB connectionSimply plug in your headset to instantly start enjoying calls and music in pure, crisp digital stereo.  Hear every detailLaser-tuned drivers and a built-in equalizer optimize sound and minimize distortion, so you can experience the rich audio details in all of your music, movies and calls.  Crystal-clear chatting, Skype-certifiedHigh-quality mic reduces background noise so friends, family and business associates hear you clearly Flips up and hides away when you're not on a call  Easy on-ear sound controls Quickly adjust volume or mute the microphone with easy-to-reach, separate, no-look controls.   On-cord mute indicator lightYou'll never talk with the mute on again, thanks to the bright, easy-to-see mute light.   Lasting comfortSoft leatherette padding is easy on your ears, especially when you're listening to music or chatting for hoursPadded headband conforms naturally to the contours of your head for a perfect and comfortable fitCompatibilityWhat's in the box USB HeadsetDocumentationWorks withWindows or Mac OSUSB port CompareWhich Logitech Headset Is Right For You?  USBWirelessGoodBetterBestUSB Headset H340 USB Headset H360 USB Headset H390 USBHeadset H540 Wireless Headset for iPad< Wireless Headset H600 Wireless Headset H760 Wireless Headset H800What do you get?Clear Internet calls and stereo soundBetter, clearer laser-tuned audioEnhanced digital audio and comfortPremium digital audio performance and comfortBluetooth headset for iPad, iPhone, iPod touchWireless audio for your calls and musicDiscreet behind-the-head design with plug-and-play wirelessPremium Bluetooth headset for your PC, tablet and smartphoneConnection choicesCorded USB    Wireless USB receiver     Nano ReceiverNano ReceiverBluetooth      Audio qualityNoise-cancelling microphoneLaser-tuned premium sound  Built-in equalizer      Comfort and ControlStyleOver-the-headBehind-the-headOver-the-headOver-the-headOver-the-headOver-the-headBehind-the-headOver-the-headAdjustable HeadbandRotating Boom MicVolume and mute controlsOn-PCIn-lineIn-lineOn-earOn-earOn-earOn-earOn ear with added music controls and slider switch for changing from PC to a Bluetooth deviceCompatibilityWindows computers Mac computersFor Mac with built-in BluetoothTablets, smartphones and other devices with Bluetooth wireless audio profile