As a vibrational feedback device with a simple drive mechanism, haptic reactor has been adopted by customers the world over. Since the very first one was incorporated into an Alpine PulseTouch™ navigation system in 2004, they have been employed in game consoles of leading brands plus an array of other products including virtual and augmented reality devices, automobiles, mobile phones and healthcare devices. Cumulative shipments to 2024 exceed 400 million units with people of all ages and backgrounds having encountered their feel.

Among the various devices on the market, haptic reactor is what is known as a linear resonant actuator (LRA). In keeping with the word resonant, haptic reactor employs a spring resonance structure created with original technology. It works according to principles of electromagnetic induction. A current passing through an oscillator, with a spring resonance structure, magnetizes it, creating vibrations. It needs only a simple drive circuit and assists size reductions. Advanced expertise acquired by Alps Alpine over many years in fields such as precision processing, magnetic design and electrical design were applied to create a compact device compatible with diverse configurations of feel.

The latest lineup includes the AFT series, which delivers a diverse range of haptic sensations; the AFR series, known for its powerful vibration force; and the AFDU series, which offers sharp haptic feedback in a compact size.