UK’S LOUDEST PERSONAL ALARM - Features a hugely powerful 143dB siren, when activated using the ripcord, the unit releases a high-intensity strobe light, alerting those around. DEFENDER IIIT PERSONAL ATTACK ALARM - Designed to deter a potential assailant and attract the attention of bystanders. Simply pull the ripcord to sound the alarm and strobe, to silence the alarm place it back into the unit. Suitable for cyclists, joggers, dog walkers, students and many more. BATTERY OPERATED - This personal alarm is battery-powered, eliminating the need for regular charging. The unit comes with batteries included that can last up to 2 years. WALL MOUNTED - The ripcord attachment means it can also be used as a bag alarm, or wall-mounted as a panic alarm next to entry points, using the bracket provided. POLICE RECOGNISED STANDARDS - Holds the coveted Secured by Design & Sold Secure accreditations, which ensures high quality and reliability., Weight: 0.25573622392 pounds, Manufacturer: Solon Security