Logitech G305 Mouse never dies..

so basically ive bought a logitech g305 wireless mouse in august last year (7 months ago from when this comment was posted) and i read the description before i bought it that the battery lasts 250 hours before replacing it, but for some reason the battery has never died?? like ive probably got more than 1000 hours on the mouse and it still hasnt died. is this mouse bluetooth or something im so confused lmfao

(it uses a single AA battery)