In one aspect, a first device may include at least one processor, an ultra-wideband (UWB) transceiver accessible to the at least one processor, and storage accessible to the at least one processor. The storage may include instructions executable by the at least one processor to receive voice input at the first device and to track a second device using one or more UWB signals received from the second device via the UWB transceiver. The instructions may then be executable to, based on tracking, perform an operation using the voice input.