DIY Super Big Ear Amp Soldering Practice Electrical Engineering Kit Made of high-impact plastic

Made of high-impact plastic

physical and chemical properties for various industrial and military applications

such as jumpers

Receiver the tone signal on the cables or wires (telephone line)

Sturdy metal case

DIY Super Big Ear Amp Soldering Practice Electrical Engineering Kit Made of high-impact plasticNOTE: Speaker Headphones not included. Listen through walls, hear conversations across the room. Add a parabolic reflector and hear blocks away. The Big Ear can be hidden about anywhere. Makes an ultra sensitive intercom. Can also be used as a 1. 5W AMP. We supply a mini electret mike in the kit. Assembly with a soldering iron is required (solder and soldering iron are not included). Power requirement 6 to 12v DC. Size: 1. 75" x 1".