SRAM Corporation Europe Unisex - Adult Rs Reverb Axs Xplr Saddle Post, Multicoloured, 27.2 mm

It's unlikely anyone else is going to make a wireless dropper for AXS (RockShox is an SRAM subsidiary in case you did not know) so there are not going to be other options if you want such a thing. It integrates with the AXS shifters and you can assign L+R shifters to control the drop, which is great IMO, as I do not need to reach for the dropper button in any riding situation where I want to drop the saddle (so my hands are going to be close to the brakes already). And if you forgot to drop the saddle before you got off the bike, there is a button on the post itself to manually lower it. The AXS system is quite confusing, I had to pair the dropper with the rear derailleur on my 1x system, instead of a shifter, as I naively thought at first. The printed manual and the SRAM video do not explain that and assume you are using a separate button (not included with the dropper). I was worried about the deep discount, but it appears a genuine SRAM part in retail packaging and included battery and charger.

Post seems good, but came with dud battery. From the packaging it appears it had already gone to at least one customer and dated from 2022. Amazon says return for a refund, but since I am not in US that'd cost nearly as much as a battery. Unfortunately, they will not just replace battery.

Great item! But be careful with the length of the tube before purchase : 35mm or 40mm.