The synth speaker Bit amplifies your sonic explorations! Its a tiny speaker you can snap onto your circuit to translate electrical signals into audible sound. HOW IT WORKS You can control the volume with a dial at the front of the Bit. It also features an output jack that you can connect to headphones an amplifier or a computer. The speaker is connected with 3M™ Dual Lock™ so it can be removed from the circuit board. To reattach simply press together firmly. Product Size : Height 2.54 cm x Width 3.75 cm x Length 19.05 cm Product Weight : 0.01 kg Product code & UPC LB-650-0134 : 810876020220