Product name:C7 beacon card Chipset:nRF52832 Broadcasting Interval:900mS Support device:iOS 7.0+and Android 4.3+system and bluetooth 4.0+ Transmission range:Max 100meters in open space Operation Voltage:1.8-3.9V Antenna:50ohm Accessories:Double adhesive Net weight:18g Size:90*60*4m Show More