Just like a regular sensory led fibre optic kit, but one that is fully portable, simply charge via the micro usb port in the handle and then it can be used almost anywhere. The various lighting patterns and colour settings are simply scrolled through using a simple push button on the handle. Designed mainly as sensory lighting, but it could be used in all sorts of applications, create amazing table centrepieces, fantastic prop creation, or the most incredible fashion accessory! Not a toy use under adult supervision onlynot to be used as a whip, it's a descriptive term only3.7v 2200mah in built batteryrecharge by micro usb cable included30 x clear fibre optic tails that are 1.5m long