PUMA alarm buzzer ☆ I used it for about 4 years attached to my school backpack. The film is peeling off and it's a bit rough, but the operation has been confirmed. It makes a very loud sound. Black With magic belt Requires 2 AAA batteries. Feel free to ask if you have any questions ♫ - Brand: PUMA - Color: Black - Features: Alarm buzzer, safety measures - Strap: Black strap Elementary school student, boy