... Description:1.Remote technology 433.92MHz/315MHz2.PC connection USB connection No driver required3.remote control distance over 15m4.suitable for WINDOWS98 ... :Technology: radio frequencyControl distance: 15mBattery:AAA x 1 Dim: 142*20*21mm Control distance : > 15m Laser distance : > 200m Battery : AAA ... 98,Se,Me,2000,XP, Mac OS, Linux USB Version : USB 1.1,compatible USB 2.0 Working voltage : 4.5-5.5V ...