The iDance Go Party 4 is a portable Bluetooth speaker designed for parties and fun. It features disco LED lights in the woofer, a USB MP3 player, and a rechargeable Lithium-ion battery providing 4-8 hours of playtime. This speaker also includes four different voice modes (Child, Woman, Man, Robot) and a voice changer function for added entertainment. A remote control is included for easy operation. The speaker has a 200-watt output and comes with one wired microphone with an echo effect. Specifications: Dimensions: H:60.0 x W:25.0 x D:60.0 cm, Colour: Black, Guarantee: 1 year. Material: Plastic. Model Number: GOPTY4.