“Lasermice” is a swarm robotic installation that consists of 60 small robots, which inspired by synchronous behavior from insects like fireflies. Normally network of swarm is invisible, But in this case those robots creates visible network via laser light – photodetector communication. As a result, they generates rythme that continuously changing. The generated rhythm is made audible by solenoid which strikes floor. Combination of visible network and audible rhythm are deployed spatially.