This is a brand new SiriusXM Onyx Plus Replacement Car Dock Cradle XDPIV2 in black color. It is a vehicle cradle that enables Bluetooth and has an FM transmitter. The item weighs 0.1 lbs and is part of the Onyx product line. It is designed to be used with portable audio and headphones. This item is perfect for those who want to replace their old car dock cradle or for those who are always on the go and need a reliable portable audio device.