The Jabra Evolve2 85 UC Stereo, headset comes with a charging stand featuring powerful digital hybrid Active Noise Cancellation (ANC), and incredible noise isolation. This headset allows easy connection as a wireless headset to a PC or mobile devices. It is equipped with powerful 40 mm speakers providing the most advanced digital chipset ever and the latest AAC codec that offers high-definition audio, for richer sound. The Dual Bluetooth connectivity helps you pair two wireless devices simultaneously, with no interruptions to stop to pair a new device.The new and improved busy light is more visible than ever, allowing you to be seen from every angle, for even fewer interruptions. Enjoy all-day comfort, with soft memory foam and an ergonomic over-ear design created from hundreds of head scans and built with durable, premium materials.Evolve2 85 UC Stereo Features:Stereo Headset Made For Voice & MusicComes with Charging Stand10-Microphone Call Technology- For Significantly Enhanced Call ExperiencePowerful 40mm Speakers & AAC Codec- Deliver Richer Sound For More Immersive Audio Experience360° Busylight on Both EarcupsDual Bluetooth® ConnectivityMultiple Device Pairing: Pair up to 8 DevicesBoom Arm Mute & Answer CallCall Management- Answer / Reject Calls- Increase / Decrease Speaker Volume- MuteNoise Isolating Design30 Meter/100 Feet of Wireless RangeVoice Assistant AccessDiscrete Hidden Boom Arm- Gives Headset More Discrete Look When On The GoRechargable Battery- Up to 37 Hours Battery LifeSmart Sensor- On-ear Detection Reconizes When Headset Is In Use, Allowing Autoplaying & Pausing of Audio & Answering & Muting CallsConnects to PC & Mobile Devices via BluetoothErgonomic Over-Ear DesignEasy Charging & Docking