Airpremier n simultaneous dual band access point dap 2690 is designed for supporting small and medium business class environments or enterprise corporations to provide secure and manageable dual band wireless lan options for network administrators the dap 2690 allows network administrators to deploy a highly manageable and extremely robust simultaneous dual band wireless network all four antennas are detachable and can provide optimal wireless coverage in both 24ghz 80211g and 80211n and