The electronic equipment includes a display, an ultrasound emitter, an ultrasound receiver, and a processor. The ultrasound emitter can be adapted to emit a first ultrasound signal into at least a space the display faces. The ultrasound receiver can be adapted to receive a second ultrasound signal. The second ultrasound signal is an echo of the first ultrasound signal reflected by an object. The processor can be connected respectively to the ultrasound emitter and the ultrasound receiver. The processor can be adapted to acquire a floating touch signal by locating the object in three-dimensional space according to charactering information charactering the first ultrasound signal and the second ultrasound signal, and execute an instruction corresponding to the floating touch signal.