text: what is blue tooth? how much does it cost<what are some easy programing tips like how can i create my own simple blue tooth program. bluetooth is a low power short range radio communications technology for connecting equipment together when it requires relatively little bandwidth. typical uses are for attaching pdas to peripherals (i have a bluetooth gps receiver semi permanently installed in my car) and connecting headsets to mobile phones. it opperates on the same frequencies as 802.11b/g but uses different spread spectrum encoding so that they can coexist even though the 802.11 uses vastly more power.