Octopus Passive buzzer Brick OBPB01

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 a passive buzzer, it could control the volume by PWM. The distinction is active buzzer stickers.