DIRECTION INDICATOR When you are making a turn, press the corresponding button on the included wireless handlebar remote. The LED indicator light alerts pedestrians and drivers to keep a safe distance from you. SAFETY ASSURANCE A lightweight vest/backpack with reflective strips and LED signal lights to improve visibility and safety at night. The LED light serves to remind pedestrians and drivers to maintain distance from you. EASILY ASSEMBLED Wear the jacket directly on your back or over your backpack. Adjust the fit with two length-adjustable straps and two waist straps to suit your body and gear. USB RECHARGEABLE Built-in high capacity battery with USB recharging, eliminating frequent battery replacements. This reflective vest is equipped with reflective strips, making it a practical road safety accessory for cycling. USE SCENARIOS - Night urban commuting: on city streets where additional visibility and turn signaling help protect you around pedestrians and vehicles. - Low light cycling on rural or poorly lit roads: enhanced visibility with reflective strips and LED signals improves safety for oncoming traffic. - Bike courier or delivery rides: convenient wear over or around a backpack with easy adjustments and rechargeable power for extended use. Key attributes - Function: wireless direction indicator with LED signaling for turn alerts; reflective visibility at night. - Compatibility: wearable as a jacket or over a backpack with adjustable straps for a secure fit. - Size/fit: adjustable via two length straps and two waist straps to accommodate layering and gear. - Material: lightweight construction designed for comfort and mobility while maintaining visibility. - Performance: USB rechargeable built-in battery supports continued operation without frequent battery changes; reflective strips and LED lights enhance nighttime visibility.