The Klipsch Synergy Series KSF-S5 Rear Surround Speakers are a pair of black trapezoid-shaped speakers made of wood. They have a wired connectivity and can be used with wired or banana plug audio inputs. They are compatible with universal models and have a wall mount or stand-alone feature. The speakers have an RMS power of 100 W and an impedance of 8 Ohms. They have been tested and are ready to use.