The U1 Remote Control provides a rugged interface option for communicating with RTI remote control processors.The U1 was designed for reliable wireless control of audio/video systems from environments which are too harsh for normal remote controls. It is completely sealed, making it both waterproof and floating. Whether indoors or out, the U1 is a perfect companion for hot tubs, pools, bathrooms, and decks.Key Features• Comfortable ergonomic design permits effortless, one-handed operation• Durable design is waterproof and it floats• Four source and eight general purpose buttons are fully assignable/programmable• Non-volatile Flash memory stores your system configuration even when power is not present• Transmits commands using RF for operation through walls, cabinets, etc.• Completely customizable, programmable and upgradeable• Optional modules for voltage and video sensing (to monitor power status of equipment) and RS-232 control• Includes four (4) AAA alkaline batteries• USB ProgrammingSpecificationsPower..........................................................................4 AAA alkaline batteriesRadio Frequency Control Range..........................Up to 100 feet (30.5 meters)Radio Frequency Carrier....................................................................433 MHzOperating Temperature..................................+32°F to +122°F (0°C to +50°C)Operating Humidity........................................................................5% to 100%Standby Time with new batteries.....................................................1000 DaysTotal System Memory..........................16K Bytes Flash (non-volatile) memoryDevice Capability.................................................Four device pages (sources)Macro Capability............................................Macro capability on every buttonCommunications...........................................................USB programming portDimensions (L x W x D)........5.9 in (150mm) x 2.3 in (59mm) x 1.2 in (30mm)Enclosure........................High-impact molded ABS plastic with textured finishWeight..................................................................5.5 oz. (156g) with batteriesWarranty....................................................................One Year (Parts & Labor)