Speedy Bee Bluetooth-USB Adapter is an unique device that allows you to configure and tune your BetaFlight settings right from your phone via the SpeedyBee app which means no more lugging a laptop to the flying field! Specifications : Model Speedy Bee Bluetooth-USB Adapter Output power 0 dBm Receiver sensitivity -94 dBm Transmission rate Bidirectional 2K/s Bluetooth protocol Bluetooth specificiation V4.0 BLE Transmission distance 10m Frequency range 2400 mHZ - 2483.5mHZ (2.4G ISM band) Baud rate 19200 USB to serial port baud rate 115200 Operating voltage 6 - 30V (2 to 7S) Minimum operating current 20mA The operating current when connecting the FC 80mA Dimension 42 x 20 x 5.6mm Net weight 3.5g Package includes 1 x SB Bluetooth USB adapter 1 x Male XT60 connector with wires Speedy Bee BetaFlight Config App iOS 10.0+:iPhone4S, iPad 3rd Gen and later iOS App Store Android 4.3+: Google Play Click here for manual.