The services of Periscope were available in the mobile application itself as well as on Twitter. Users of Periscope were able to choose whether or not to make their video public or simply viewable to certain users such as their friends or families.[26] Although the "scoper" usually used a handheld device such as a smartphone to broadcast, it was also possible to broadcast through Periscope using a professional vision mixing suite such as Wirecast or Teradek using Periscope Pro.[27] On 10 September 2015, Periscope added the ability to broadcast live in landscape view.[28]