DescriptionModel Number : Buzzer ModuleCompale Brand/Model : NoneBrand Name : SZEKSOrigin : Mainland Chinais_customized : NOCondition : NewType : Voltage RegulatorApplication : ComputerHigh Quality Active / Passive Buzzer Module for Arduino New DIY Kit Active Buzzer Low Level ModulesDescriptionThere is no shock and source inside the passive, so if the dc signal cannot make its chirp, it must be driven by the square wave of 2K~5K, the sound frequency is controllable, it can be made, the effect of multi-mi-fi-solasone can be made, in some special cases, the LED can be used to reuse a controlport.The module is driven by S8550 audionOperating voltage 3.3V-5VFixed bolt hole for easy installationPCB size of small board: 32 2mm*13mm3 wire system1.VCC external connection 3 . 3V-5V voltage ( it can be directly connected to 5V single chip and 3.3V single chip)2.GND external GND3.I / O external single chip IO portPackage Included1 Pcs Buzzer Module