Astell & Kern USB Dual Dac Cable, model PEE51, uses a usb-c input linked by cable to the main body, with a 3.5mm output for headphones. Its an ultra compact way to get A&K's sound quality on the go with other devices.Designed to use with cell phones and computers, to provide much improved sound quality (iphones and ipads are not currently supported). The Dual Dac Cable combines
Dual Dac Cable can drive headphones with up to 2Vrms output. With android phones, Windows 10 and Mac it should be plug and play operation. Dual Dac Cable is powered by the source device so there are no batteries or charging. The cable is fully shielded to reject noise from phones and computers.