THIS IS THE PROFESSIONAL SERIES DIGITALDARTH VADER BREATHER UNIT WITH A BUILT IN AMPLIFIER & VOLUME CONTROL AND NEW PREMIUM BASS REFLEX SPEAKER WITH INSTRUCTIONS *** NOW IN STOCK – FAST SHIPPING!!!! *** AUCTION DOES NOT INCLUDE MASK/HELMET!!! TO SEE THE UNIT IN USE: >>CLICK HERE FOR DEMO PRODUCT VIDEO<<(I don't know this You Tuber, but it is a good display of the product) What is does:We created a brand new, from scratch, digital sound file that replicates the character sound. Because it is a brand new digital track, it contains no outside noise from a sound track. It is 100% crystal clear and clean. The sound file is played from a 16-bit HD quality digital chip set, converted to analog, and run through an amplifier and a volume control. Finally, the sound is output to a high fidelity speaker that has been tuned for this specific purpose. How it works: The system operates for days on a standard 9 volt battery and can be mounted entirely within a helmet, or chest box. Because the signal is analog, it can also be intergrated and mixed with any other standard analog audio such as music files or sound FX files. System has an external thumbwheel volume control that can be mounted where it can easily be adjusted without removing the helmet. FEATURES: • 16 Bit Digital Audio Processor • 3 Watt Built-In Stereo Amplifier • In-Line Thumbwheel Volume Control • Tuned Mountable Speaker w/Housing • Energy Efficient 9 Volt Operation • LED Power Indicator • On/Off Power Switch • Included Gender Changer Adapter • Long Cables for Easy Mounting • Velcro Mounting Kit • Installation Instructions Warranty: Guarantee NO DOA! Full 30 Day Money Back Warranty! While the instructions are straight forward and easy, we offer lots of installation support from experts who have installed and use these very units. NOTE:Check out our other Ebay listing for additionalStar Wars, Guardians of the Galaxy, & Battlestar Galactica Gear. We are only selling a few units, and when they are gone, they are gone! Unit ships Insured UPS, USPS Priority Mail or Faster, Worldwide. Please email with any and all questions prior to purchase. Buyer is responsible for any and all import/export duties and taxes.