ADYTON&reg; 140 dB Ladybug Personal Worker/Children/Elderly/Disabled/Rape/Jogger/Student Emergency Alarm with LED Light and Included Lithium Battery &ndash; 1-YEAR REPLACEMENT GUARANTEE Intelligent easy-to-use personal alarm. When you need help, simply pull out the metal pin to start the high pitched signal. LED light included to illuminate texts, walking paths, door locks or similar. 4 units of Lithium cell battery (LR44) included. World class personalized online customer service. All our products come with an appreciated 1-YEAR REPLACEMENT GUARANTEE. Simply respond to the emails sent our by our customer support team should you have any issues and we get back to you right away.