Horus X10S Express use the ACCESS communication protocol, it boasts 24 channels with a faster baud rate and lower latency equipped with a high-speed module digital interface. Along with the new spectrum analysis function and added FrOS/OpenTX firmware, it is now possible to check the airwaves for RF noise.
Both X10 and X10S Express support balancing charge for 2S Li-ion battery via a collateral USB cable. The accessible battery compartment design is another change worth mentioning, with two 18650 Li-ion batteries you can expect to be able to fly whole day. The Express carries forward all of their predecessor’ features like the industrial LCD color screen, and the highly-accuracy M10/MC12P hall sensor gimbals which offer the most precise control. Additionally, it features a remarkable PARA wireless trainer function which also makes them compatible with the FrSky Free Link App and AirLink S. All that makes the Express version an ideal transmitter for, gliders, helis, multirotor and every type of fixed-wing imaginable.
Note:
The X, XM, RX, GX series receivers can be gradually upgarded to ACCESS protocol. It includes XM, RXSR, RX4R, RX6R, G-RX6, G-RX8, XM Plus, and R9 series. For more details about ACCESS, pls. visit: https://www.frsky-rc.com/frsky-advanced-communication-control-elevated-spread-spectrum-access-protocol-release/