This bluetooth headset incorporates multipoint technology enabling it to pair with two different mobile phones using blue tooth version 2.1 + EDR, Class II. This wireless headset is perfect for busy executives who have two phones for different purposes or for sales professionals who find the road to be their office. But not only is this headset useful for professional use, anyone can discover the advantages of using this headset. The BT703 Bluetooth Headset is ideal for any busy individual in the current multi-tasking era. The bi-directional ear loop fits to either ear easily and its ultra-light weight of 6.5g makes it the lightest of its class. You can even get a phenomenal 6 hours talk time and 90 hours standby time, making this model a perfect option for business trips. A USB charger comes included complimentary, so that the lithium polymer batter is always able to be recharged.