The XBi2 wireless intercom comes equipped with A2DP Bluetooth® technology. All the same features as the XBi but with additional power that allows simultaneous communication between three riders with up to a 1640-foot (500-meter) range in optimum conditions. Stream audio signal from any source that already comes equipped with Bluetooth®, such as cell phones, MP3, GPS, or iPOD®/iPone® when hooked up to a Bluetooth® Adaptor such as the iCombi Bluetooth® Dongle Adapter. XBi2 will allow up to 6 to 8 hours of true talk time and 48 hours of standby time on one charge.