CRYSTAL CLEAR NOISE CANCELLING CALLS: Using Qualcomm cVc Echo Canceling Noise Suppression Technology to deliver clear voice quality when making calls. Our Uni-Directional Noise Cancellation Microphone together with the Qualcomm Noise Suppression Processor reduces background noise which greatly improves speech transmission. Microphone can also be muted directly from the headset. BATTERY LIFE AND TALK TIME: Our Battery offers a standby time of up to 500 hours with a talk time of 22 hours and 19 hours media playing time. This Extended Battery life allows you to use this headset for multiple working days without any charging interruptions. WIRELESS RANGE AND COMFORT: The BT75 and BT85 have a Bluetooth Wireless Range of up to 50 FT from the connected device which is perfect for small office and homeworkers.The Headset range is lightweight with the BT75 at 85 grams and BT85 at 120 grams and include breathable leather cushions and a wide extendable headband to provide an ergonomic f