The Vonyx VPS102A is a complete plug & play set, ready to start your party. The set contains a pair of 10″ speakers, a passive and an active (master) model. The active model houses the amplifier to power both speakers. Also features an integrated USB/SD media player with Bluetooth for connecting and streaming your music from a smartphone or tablet. Both speakers have a blue LED ring around built-in the woofer which create a true party atmosphere and are a great added effect. Supplied with speaker stands and a corded microphone, the system is ideal for house parties, karaoke, and other smaller events.