Ween is a south France-based company that has on display their smart thermostat. It connects to up to 16 smartphones (house residents) that are then tracked over a period of time, with temperature maintained at a preset level. Since the thermostat knows how long it takes to reach a certain temperature, it switches on appliances at home accordingly. Ween also features inbuilt machine learning capabilities to anticipate and respond to unplanned absences of the members. It goes on sale for US$350 along with a gateway device paired via RF.