2-Pack Eddystone & iBeacon Compatible BKON A1 Beacons Physical Web Approved Certifications: iBeacon, Eddystone, Physical Web, Bluetooth Smart, FCC, IC, CE, REACH, RoHS, Core IC: Nordic semiconductor Bluetooth Smart radio and CPU Battery: Replaceable AAA batteries (Works with either Alkaline or Lithium) Range: up to 100 meters at the highest power setting