2pcs Z55H Batteries and Charging case Battery, Replacement for WF-1000XM4 WF-1000XM3 WF-SP900 WF-H800 WF-SP700N WF-XB700 WF-C700N WF-C500 WI-SP600N with Adhesive Tool 3.85V 70mAh

So far the batteries are working and charged to 100% Will see how they survive after a year

Screw drivers weren't really necessary in this kit but the other tools and glue made this a simple replacement. Just note that I did have to add a scrap piece of carton against the back of the pcb in one ear bud as the the left over adhesive + glue wasn't giving enough pressure to keep the board pressed against the battery

Producto correcto

Phenomenal kit. Batteries are better than the original. They charge fast and hold a charge great.

Easy to install and they have lasted about 6 hours on my wf1000-xm3

One battery worked, the other didn't. Tools worked

Everything works good items as described

Maybe could have worked, but the tweezers tools were ineffective at separating the clip from the motherboard without considerable force which must have damaged the clip, so when I put it back together it wouldn't function at all. So now I'll be dropping another 200 dollars for a new pair of earbuds along with the 20 minutes and 20 dollars I wasted on this.