Pyle PLTB12 12-Inch 600-Watt Carpeted Subwoofer Tube Additional investigations are included which

Additional investigations are included which will allow students to further explore the complexities of cheesemaking by changing such variables as temperature

The USB output is 5v

These look like the vintage metal water buckets of long ago

music stands

Metal belt clip for easily attaching to belt or pants pocket

Pyle PLTB12 12-Inch 600-Watt Carpeted Subwoofer Tube Additional investigations are included which600 Watts Max Power Handling Blue Polypropylene Cone Specially Treated Black Rubber Edge Suspension 2" aluminum voice coil Bass Reflex Vent for Added Sub Bass Response This Pyle Blue Wave subwoofer pushes 600 watts of booming bass! The 12 subwoofer tube has a high quality carpeted construction for that classic look. Its equipped with a blue polypropylene cone and specially treated black rubber edge suspension for a distortion free sound that rocks.