The 900MHz R9 Mini-OTA receiver implements the ACCESS protocol and brings the user improved performance and features. The R9 Mini-OTA supports wireless firmware updates over the air making binding to receivers even easier. As well as the convenience of checking the current receiver firmware version. The R9 Mini’s compact form factor design is also carried over to the OTA version, and the R9 Mini-OTA supports redundancy function as well.

Features:
915MHz (Non-LBT Version) / 868MHz (LBT Version)
Mini size and super lightweight
Supports OTA firmware update
Supports firmware version check
S.Port enabled and support telemetry data transmission
(Support F.Port, download firmware to support the function)
Supports redundancy function
Low latency and high precision
With RSSI output in SBUS
Battery voltage detection supported
Detachable Ipex connector antenna

FrSky 900MHz Mini Receiver R9 mini-OTA ACCESS

Dimension: 16*10*2.8mm (L×W×H)
Weight: 0.7g (without antenna)
Number of Channels:
Non-LBT Version: 4/16CH (Telemetry)
LBT Version: 4/16CH (Telemetry) / 4/16CH (No Telemetry)
Operating Voltage Range: DC 3.5V – 10V
Operating Current: 100mA@5V
Operating Range: Up to 10km or above
Compatibility: R9M Lite/R9M/R9M 2019 with ACCST firmware
R9M Lite/R9M Lite Pro/R9M 2019 with ACCESS firmware

Includes:
1 x receiver R9mini+OTA 

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