We're going bluetooth these days for trainign weapons and soon other AEGs might follow. Though we would recommend a mobile app for this Celcius iECU from Celcius Technology so players can make adjustments via their smartphones on the field rather than lug their laptops around... "In this video we are showing you the most advanced ECU in the world. We call it the iECU. For those who don’t know what ECU is, it is actually the 'Brain' of a Training Weapon.