You have a bell on her! Good for you! Both my dogs have bells ... it's a good way for me to keep track of them in the dark.
However, I noticed that it's on a collar. May I make a suggestion? When Bella was little (she's a BIG girl now at 3.5 lbs.), I used a ferret harness on her. The harness fit her perfectly. Put the bell on that. Or, get a piece of elastic, put the bell on, then stitch the ends together. She's such a tiny little thing - everything's so close to the surface - please don't risk damage to her trachea.
She's a beauty - take very good care of her and love her to pieces (yeh, like I have to tell ya to do *that*
)