Scienticy Small Piezoelectric Buzzer 5V Active Buzzer (Pack of 5)...

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Stookin Electronic Buzzer Alarm Sounder Continuous Sound Beep PACK of 5 Sound Recorder and Sound Circuit Electronic Hobby Kit

ELECSYNERGY 5V 7A 5 Pin SPDT subminiature High Power Relay Electronic Components Electronic Hobby Kit

Cam cart CTE049 DIY 5V Buzzer With Hi-Wi 9V Battery & Connector, Combo Of 4, Multi-Color Educational Electronic Hobby Kit

Stookin MQ-6 Combustible Gas Propane or Butane or LPG or LNG Detector Sensor Module Arduino Power Supply Electronic Hobby Kit

geeta enterprises (Pack of 2) 5V Active Buzzer Magnetic Long Continous Beep Tone 12*9.5mm Electronic Components Electronic Hobby Kit

Stookin Electronic Buzzer B-20 Alarm Sounder Continuous Sound Beep Sound Recorder and Sound Circuit Electronic Hobby Kit

SAMAES 25 Pics 3mm LED Red, Green, Blue, Yellow, White 5 pics Each Led Light Electronic Hobby Kit

AUTO BOTIX HC-SR04 Ultrasonic Sensor Distance Measurement Arduino ESP32 ESP8266 Compatible Sound Recorder and Sound Circuit Electronic Hobby Kit