uxcell 10PCS DC 12V Wired Connector Active Electronic Buzzer 85dB

Uxcell a13101000ux0716 10x Red Short Cable Connection 9V Battery Clips Connector Buckle (Pack of 10)

VIPITH 30 Packs 9v Battery Clip Connector Buckle, Faux Leather Housing T Type and 15cm Black and Red Cables for 9v Battery and Holders

uxcell 5 Pcs DC 3-24V 85dB Sound Electronic Buzzer Alarm Black 23 x 12mm

Ajax Scientific Miniature Light Bulb, 1.5V, 0.30 Amp (Pack of 10)

WAYLLSHINE® 12 Pcs/1 Dozen 2 x 1.5V AA Battery Holder Case Box Black Wire Leads

GBSTORE 2 Pcs DC 9-15V Active Piezo Electronic Buzzer Alarm

Ajax Scientific Battery Holder with Lead Wire, 1x AA Cell (Pack of 10)

8 pcs Balpha 4X 1.5V AA Battery Holder Case Box with Cover & ON/Off Switch Wires Leads 8 Pack(8X 4aa)

EUDAX Micro DC Motor 2mm Shaft Propeller with 4 Vanes 80mm Fan Shape for Fan Leaves Ship Model RC Boat DIY Airplane Science and Education Toys (32PCS)

eBoot 30 Pieces Photoresistor Photo Light Sensitive Resistor Light Dependent Resistor 5 mm GM5539 5539