1Pcs BQ78350DBTR-R1 TSSOP-30

1Pcs R5F52108CDFN#30

DC 5V/12V 30A High Power Optocoupler Isolation Relay Module High/Low Trigger

1Pcs LZ30-5

1Pcs TRME157M016R0030 Tantalum Capacitors - Solid SMD 16v150uF20% Tol ESR = 30

1PCS DC 3-5V Electret Microphone Preamplifier Module 721 Adjustable 5-30db

1-10PCS DC 3-5V Electret Microphone Preamplifier Module 721 Adjustable 5-30db

1PCS ESP-12F Development Board ESP8266 Wifi 4 channel 5V 30A Smart Relay Module