The low profile Wearable X is a convenient and easy-to-use cycling safety light. You can simply attach it to your clothing or pack with a one-touch, detachable clip, or directly to your bicycle via the included rubber strap. With six lighting modes from which to choose, the Li-ion rechargeable battery can provide up to 30 hours of service between charges. The auto save mode automatically changes to slow flashing mode when the battery runs low, which can be fully recharged using a simple USB port in just 2 hours. Getting dark on your commute? Wear it.