This is a 35mm Concave Momentary Push Button similar to the ones you find on arcade games. 

This is a 35mm Concave Momentary Push Button similar to the ones you find on arcade games.

This is a 35mm Concave Momentary Push Button similar to the ones you find on arcade games.

This is a 35mm Concave Momentary Push Button similar to the ones you find on arcade games.

This 2xAA battery holder puts a nice finishing touch on your battery powered project. 

This 2xAA Battery Holder is a nice touch in your battery powered design.

This is an os card for our RFID readers . The SparkFun L eid RFID Breakout converts the 2mm pins to the breadboard in a friendly 0.1 "headers. With this ability the ID-3LA, ID-12LA, and ID-20LA you can weld the reader directly to the header or use the 2 mm connectors

This is a simple pack of five Red LilyPad LEDs that are still attached to one another.

This is a simple pack of five White LilyPad LEDs that are still attached to one another.

This 12V car adapter jack allows you to plug your project into your car&rsquos cigarette lighter for power on the go.

We have no idea what USB device you are hooking up to, but if you want to access the microUSB port on something, you might want this.

The NCP1402 is a 3.3V DC-DC converter. 

This is a fantastic find for SFE. A small, high-quality, quad-band, standard SMA terminated, cellular antenna.

Detecting temperature changes has never been easier. The MCP9700 is a small thermistor type temperature sensor. 

This will be a treat for your ears! The Hamburger Mini Speaker is a 3W economical speaker option for any project needing stand-alone sound. 

This analog panel meter measures DC voltage from 0-5 volts with 2.5% accuracy.

Blink any color you need! Use the Tri-Color LED board as a simple indicator, or by pulsing the red, green, and blue channels, you can create any color. 

This LilyPad Coin Cell Battery Holder has a small slide switch installed on the board, in-line with the power so you can shut off your project and save batteries. 

Battery for AC inverter by EL Wire .

FemtoBuck LED Driver - SparkFun

SparkFun Luminosity Sensor - TSL2561