Thank you for viewing from among many options. Features: This is an emergency whistle with an LED light. You can switch between the white LED for steady illumination and the red LED for flashing. Specifications: Model Number: KE-135 Body Size (mm): 22 x 20 x 102 Material: Body / ABS resin, Strap / Polyester Light Source: White LED, Red LED Brightness: White LED / Approximately 5 lumens Power Supply: LR44 button battery x 3 (test batteries included) Volume: Maximum 100dB Weight: Approximately 30g Lightweight and compact, easy to carry! ! It provides peace of mind during walks, camping, and emergencies! It will be handed over as is. Please understand that it has been stored at home. Please feel free to ask any questions before purchasing. We hope you will consider this opportunity.