This is the SONIC Riana Tiara safety alarm. It's characterized by being "lightweight and durable," weighing only 35g (including the belt and batteries), while also being shock-resistant thanks to its lightweight batteries. With a loud 91dB sound, it provides peace of mind in emergencies. It comes with a fixed belt that can be attached to a school bag, and also includes test coin batteries (CR2032 x 2). [Brand] SONIC [Product Name] Riana Tiara Safety Alarm [Color] Purple [Volume] 91dB [Weight] 35g (including belt and batteries) [Accessories] Test coin batteries (CR2032 x 2), fixed belt [Condition] Unused This is a flea market site, so we cannot handle initial defects. Please be aware of this beforehand. Thank you.