I am the original owner of this Audioquest Dragonfly Red with latest firmware. The Dragonfly Red can be used with various phones and tablets for a big upgrade in sound quality. This DAC has received great reviews from numerous magazines and users. It can be used on the go, or even with your car stereo if you have an Aux In. Then you can play high resolution audio wherever you go. Price includes an Audioquest Jitterbug which is used to attenuate noise from the USB buss and the Audioquest Dragon tail USB extender. I will pay for USPS Priority shipping to the lower 48 only and PayPal fees.