Longest Range Bluetooth Adapter, proven to extend the range to Bluetooth keyboard, mouse, smartphone by factor 10, newest BT4.2 standard with BLE OUT OF STOCK, back by June 20, 2018 Extend the range to existing Bluetooth devices by factor 10 Newest Bluetooth 4.2 version, with added BLE security FCC certified up to 10km range with 18dBi directional antennas on both ends Economic and ecologic shipment in reusable ziplock bag, manual online