Compatible with all AXS and eTAP systems. Compatible with the SRAM app which allows you to monitor battery level.
REVIEW: SRAM Transmission Drivetrain - Indestructible WIRELESS MTB Shifting
Battery Charger, EP-EAC-BC-A1
SRAM AXS Review: Is AXS ready for big adventures?
Battery Charger, EP-EAC-BC-A1
SRAM releases new wireless eTap AXS Blips for shifting anywhere on your bars
Replacement Battery + Charger for Sram Axs/Etap (XX1 X0 GX Reverb)
Replacement Battery + Charger for Sram AXS / eTap Red Force (XX1 X01 GX Reverb)
New Wireless MTB Shifting - SRAM Transmission TESTED - Mountain Bike Feature - Vital MTB
SRAM XX1 Eagle AXS review - BikeRadar