RG831B 8-Ch DMSS Full-Range Rx w/RA-01T Telem This is the JR Radio DMSS 8 Channel Full Range Reciever with Telemetry RG831B.Features:DMSS system speed and security Telemetry system capable with built-in receiver voltage Low-profile, robust-yet-lightweight design Remote antenna/telemetry module Dual, built-in bi-directional coaxial antennas Failsafe support on all channels Status condition LEDs