Denon HEOS LINK Wireless Pre-Amplifier (Black and Gunmetal) (New Version), Works with Alexa Compatible with Alexa, Siri and Google Assistant voice control Plays high resolution audio Bluetooth integrated Turn any stereo system into a wireless zone Play your favorite music from a range of streaming services as well as your smartphone, tablet, USB drives or other external device Control your Denon receiver, integrated amplifier or mini system right from the HEOS app