Octopus Active Buzzer Brick OBAB02

Octopus Electronic Bricks, you can use them build electronics projects just as easy as piling bricks. By using Octopus electronic bricks, you may connect Arduino/Freaduino compatible boards easily with various digital, analog and I2C/Uart interfaces. These the breadboard-less firm connection are prepared to extensive modules like poteniometers, sensors, relays, servos even buttons, just plug and play. 

Octopus Passive buzzer Brick is based on an active buzzer, and can not control the volume by PWM. The volume is constant. And passive distinction is the buzzer posted sign.