Check the listing for details. Directed 515R Rechargeable Backup Battery Siren with Key. Condition: New. Listed at 100.00 USD. The Directed 515R Rechargeable Backup Battery Siren with Key is a high-quality car alarm and security system accessory from Directed Electronics. This product ensures that your vehicle's alarm system remains functional even in the event of a power outage, providing peace of mind and added security for your car. The rechargeable battery and key features make it easy to use and convenient for everyday use. * SERIOUS BUYERS ONLY!!! * SCAMMERS ...... PLEASE STAY AWAY FROM MY PAGE DO NOT PURCHASE THIS ITEM TO USE AS A TESTER OR TO SWAP PARTS *