High quality sound: Superior noise cancellation technology (crystal clear conversation);If the voice gets muffled Please check whether there is other disturbance or other electrical devices between headset and mobile</br>Comfortable & Convenient: Over the head wireless bluetooth headset with Boom Mic</br>Flexible design: The headband of this trucker bluetooth headset is adjustable for left or right according to your preference</br>Playing time: This over-the-head bluetooth wireless headset usually allows up to 8 hours continuous talking time and 250 hours standby time with a single charge</br>Please note: The bluetooth headset cannot be used to listen to music; It is just for communication</br></br>Product Description</br></br>This is a new wireless Bluetooth stereo headset which uses an over-the-head design and has been using Bluetooth wireless technology. And it is capable of connecting with Bluetooth devices designed with Audio Gateway and PDAs. Moreover desktop and notebook computers can be connected and paired with the Headset using a USB Bluetooth Dongle and it has the dual-link function for connection to two mobile phones simultaneously.