You can feel most fastest response by EX-NEXT and KR-420XT.
*The telemetry function can only use with our serial compatible products and receiver's power voltage.
KR-420XT is supported 'REAL TIME ICS" that is new serial communication to servos. It became to change setting data of servos by wire-less from transmitter in your hand. You can use "REAL TIME ICS" with connect to B/S port from BSx4-one10 Grasper2 that is supported serial communication.
There is only one B / S port, but you can connect two or more devices by change the device ID number and using a branch cable. So, You can use "REAL TIME ICS" in the GP car or else category too.
EX-NEXT & KR_420XT are supported HCS that is adopted from RSx3 BSx3 series.?Until now, it was necessary to change the receiver mode using the setting device, but with EX-NEXT, it can be changed from the transmitter each channel.HCS compatible servo are automatically change to HCS mode when received signal was HCS. If you want use HCS, please connect to 1-4ch of KR-420XT.
*it is can not use with EX-LDT/EX-RR/EX-2.