In a move to cater to a younger clientele, Hilton Hotels is rolling out a smartphone app that allows customers to control their rooms. Through the app, guests will be able to control the TV, air conditioning, lighting and window curtains. Testing has begun in four Memphis, Tenn. hotels and Hilton plans on expanding to a dozen cities by June, servicing 1,000 rooms.

Hilton owns 5,300 hotels in 106 countries, which means this technology could eventually serve 863,000 rooms worldwide. The hotel company has experienced with in-room tablets that served a similar function in the past, but the app would allow for easier access to hotel services.