Receiver RXSR/LBT with redundancy
FrSky ultra mini receiver R-XSR is the evolution of FrSky full range XSR receiver. The R-XSR is a standalone receiver with all the functions of XSR, in addition, it's almost 1/3 size and 1/3 weight of XSR receiver. Moreover, there redundancy function is integrated into this tiny receiver ensures the security, and the IPEX connector makes it more convenient for you to replace antennas.

Features:

Ultra mini size and light weight
Support telemetry and SmartPort enabled
Full range
Switchable SBUS/ CPPM signal output
Supports redundancy function
IPEX connector, replaceable antennas
Specifications:

Dimension: 16*11*5.4mm (L*W*H)
Weight: 1.5g
Number of channels: 16CH (1-16CH from SBUS channel, 1~8CH from CPPM channel)
Operating Voltage Range: 3.0V~10V
Operating Current:70mA@5V
Firmware upgradeable