# What You Will Need

* A mobile device with the Blynk app and Particle app installed.
* A Wi-Fi connection.
* A [Particle Boron-Argon Relay Shield](https://www.brlabelectronics.com/product/ParticleBoron-Argon4ChannelRelayShield/12?cp=true\&sa=true\&sbp=false\&q=false).
* A Particle Argon.
* A Particle.io account.
* A Blynk.io account.