This fully portable battery powered speaker is all you need to make yourself heard. It is rechargeable and will run for around 3.5hrs on a full charge so it can easily be used outside for sports days or when its not near a plug! Its also perfect for singing through playing music or making announcements to large groups. 2 Microphones can be plugged in at the same time along with a CD player or any other gadget you have. It is also a bluetooth speaker so music can be player wirelessly from a phone or ipad. It is mounted on wheels for easy transportation. Every school should have one!