GEARONIC Black Hot Pink External Rechargeable 2500mAh iPhone 5 2pc Backup Battery Hard Shell Back Case - Fits All Versions of iPhone 5 - Lightning Connector Integrated

Running at night can be dangerous if you're not sporting the correct gear. This armband is laced with LED lights to allow drivers and other pedestrians to identify you in the dark. There's three light settings that you can choose from ranging from a constant light to flashing lights. This armband runs on a 3V lithium coin cell battery (included). The strap is adjustable and is secured with velcro.