About this item Micro speaker 8ohm 3w has a wide range of applications. It is compatible with raspberry pi, robot, advertising machine, game machine, integrated machine special speaker, etc. Size: 1.22 x 1.1 x 0.59 inches Line length: 11 cm 2pin 2.0 terminal Resistance: 8 ohms; Power: 3 watts Mini speaker for Arduino: 8 ohm 3 watt; Its connector is separating, One-to-Two interface, can choose 3.3V or 5V Size: 1.22 x 1.1 x 0.59 inches