Inland 08319 Pro Mini USB to WiFi Dongle Effective working distance: 200 meters indoor and 830 meters outdoor (varies by environment) Frequency range: 2.4 - 2.4835 GHz Supported network protocols: CSMA/CA with ACK Transfer method: Direct sequence spread spectrum (DSSS) Sensitivity: 54: -68dBm@10% PER, 11M: -85dBm@8% PER, 6M: -88dBm@10%PER, 1M:-90dBm@8% PER, 256K:-105dBm@8% PER (typical value)