Catalog > Consumer Electronics > Kits > Kits (By Function) > Transmitters / Receivers / Remote Catalog > Consumer Electronics > Kits > Maxtronix Kits Electronic Dual Digital Transmitter Electronic Dual Digital Transmitter MX-640 Electronic Dual Digital Transmitter Kit • Function Group : Transmitters / Receivers / Remote Call for Price Add Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Features Learn how Electronic Transmitter works Up to 50 feet long distance Communication PTT (Ptress-To-Talk) Button for Easy Communications Simple Coil-Spring hook up simplifies construction - no soldering required Build your own Electronic Dual Digital Transmitters Gear - It's Easy Fun and Safe Follow Step by Step Instructions to Build your own Electronic Dual Transmitter easily Requires 2 x 9V batteries (not included) Additional Information Group Transmitters / Receivers / Remote Model MX-640