Take control of the room and make your voice heard with the RockJam wireless microphone This high quality microphone is perfect for home events of all types, and has been designed for comfort and engineered for crystal-clear sound reproduction There is no cord, so you do not have to worry about tripping over wires It’s also lightweight (just 150g), and is compatible with all standard karaoke machines and amplifiers, thanks to its universal 635mm jack 3 AA batteries required