USB Connection

The audio unit has two USB ports which are equipped for external device input and smartphone connection. The USB port A is based on the specification of USB Battery Charging 1.2 (BC 1.2) that supports high-speed charging of the USB device. The audio unit can detect the USB device type (BC 1.2 or not), and change the charging mode automatically. The USB port B supports charging to USB devices by a 1.0 A electric supply.