A computing device comprises a head that can be physically attached to a base. The head may be capable of functioning as a type of computing device independent of the base. The base may include a base transceiver to receive data from a first component of the base, encode the data into a signal, and transmit the signal. The base may include a base waveguide to guide the signal to a head waveguide of the head. The head may include a head transceiver to receive the signal from the head waveguide, decode the data from the signal, and send the data to a second component of the head.