Two (2) Brand new Lectrosonics SMDB/E01 Dual Battery Transmitter, block 606 with antenna. Auction price is for one unit. Items comes from the estate of a professional audio engineer and has been tested and in working condition, but on one transmitter the backlight does not work (I do not know if there is way to turn it on or off from the screen, but it does not light up when I turn the unit on) does not affect unit function otherwise. Shipping is free within the continental USA, for those in the EU interested, shipping rates apply.I respond to questions about the items I have for sale promptly, so please ask any questions before purchasing or making an offerUHF Belt Pack TransmitterThe SMDB/E01 brings Digital Hybrid Wireless® technology to miniature transmitters in a configuration essentially for any wireless microphone application with a lavaliere microphone. The tiny size of the single battery SMDB/E01 model makes concealment easy, yet with 50 mW output, it does not sacrifice performance.Switching power supplies throughout the design allow long battery life with NiMH batteries. Setup and control is simplified with membrane switches and an LCD interface. Multiple functions are clearly marked on the panel, with on-screen prompts on the LCD as reminders when another switch must be held or the selection is locked out.The input section features the unique servo bias input circuitry with a standard TA5M type jack for use with electret lavaliere mics, dynamic mics, or line level signals. A DSP-controlled analog audio limiter is employed before the A-D converter. The limiter has a range of more than 30 dB for excellent overload protection and a dual release envelope that makes the limiter acoustically transparent while maintaining low distortion. The limiter recovers quickly from brief transients, with no audible side effects, and also recovers slowly from sustained high levels to keep audio distortion low while preserving short term dynamics. Two bicolor LEDs make adjusting input levels for proper modulation easy and accurate.The splash-proof housing is machined out of a single block of aluminum, which is then plated with a superhard, non-corrosive coating. The SMDB/E01 transmitter is equally at home in theatre, television and film where temperature and environmental extremes require superior performance under the most demanding conditions.