[Yu-Yu Mercari Delivery - Post-in] The outer cover is discolored due to long-term storage. Unopened Rare National product A security alarm that protects you with a loud 91dB sound. Uses 2 size-5 batteries. It will sound when you pull the string. Keychain type (The string can be replaced with your favorite decorations, etc.) For crime prevention during school commutes, work commutes, etc. We will send it in simple packaging such as an envelope in a plastic bag. - Model: BH-210P - Color: Red - Volume: Approximately 85dB - Batteries: Uses 2 size-5 batteries - Example of use: Security alarm National Matsushita Electric Panasonic Thank you for viewing.