Are you looking to work smarter instead of harder when it comes to your usual house cleaning routine? Different technologies and methods promise better results for less effort but some are gimmicks.

In the new device, an array of 256 speakers, each about 1 centimeter wide, faces another, identical speaker array across a distance of 23 centimeters. The speakers emit sound waves at frequencies too ...

Silentek offers new ultrasonic jammer which outperforms all other units tested. The UJ-20000 proved effective against all devices tested, including iphones. USA ...