*40 meters(120 feet) RF detection range works through walls and floors(great ability to find your keys even if hidden inside drawers, cabinets, pockets, and any other hard to find place), finds lost keys quickly

*Zero false alarms

*Credit card shaped transmitter fits in any wallet or purse

*Over 9000 different codes, without interference

*Full color printing on credit card size transmitter

*Long lasting battery (1 year for transmitter battery CR2016, over 6 months for receiver battery CR2032, batteries are easily to be replaced after use up)

*Large printing space on nice tin-can packaging (retail blister package is optional)