Battery level, nothing to complain about. I bought the pack without ever having touched drumsticks in my life. Very easy assembly, easy to handle. Really a good drum set for those who want to get started. One star less because the headphones and the stool are really poor quality. The sound of the headphones is crushed, muffled and does not bring out the true sound of the drums. The stool is not stable, even when tightening the locking screw fully, within two minutes it loosens and a rocking movement starts, making it impossible to maintain good balance. The drum set, 5 stars the stool and headphones pack, 1 star