Line Array SpeakerOne lightweight, slim, compact line array design. Three different systems; Passive (non-powered) extension speaker, Amplified speaker with a built-in 30 Watt amplifier and a Neutrik combo microphone connector, lastly a Amplified speaker with built-in 30 Watt amplifier and a 16 channel wireless microphone kit. All can be mounted either horizontally or vertically. Mounting bracket included.