Ballistic Data Xchange (BDX) capable, providing your BDX riflescope with an automatic illuminated holdover dot through Bluetooth pairing SpectraCoat anti-reflection coatings for superior light transmission and optical clarity Free downloadable SIG BDX App for your smartphone, iOS and Android are supported Featuring Sig Sauer's BDX technology, the KILO3000BDX is the world's most advanced laser range finder binocular. When paired with a SIERRA3BDX riflescope, the onboard Applied Ballistics Ultralite calculator sends ballistic drop data via Bluetooth directly to the SIERRA3BDX's BDX-R1 reticle, providing an illuminated holdover dot and wind hold. Download the free BDX App for iOS or Android to setup ballistic profiles and synchronize custom profiles to your KILO for exact ballistic solutions. • FAMILY:Kilo Series • MODEL:Kilo 3000 BDX Binocular • TYPE:Accessory-Binoculars • FINISH:O.D. Green • MAGNIFICATION:10X • OBJECTIVE SIZE:42mm • ADJUSTABLE OBJECTIVE: No • RETICLE:BDX-R1 Digital Ballistic • ILLUMINATED RETICLE: Yes • SCOPE COVER INCLUDED: No • ADDL INFO:Laser Range Finding Binoculars • ADDL INFO:Class 1M • ADDL INFO:Compatible w/Sierra BDX Series