Attach the wireless transmitter to the handlebars of your bike for easier control, adjustable shoulder and waist straps to fit your body perfectly. Lightweight backpack with reflective stripes and LED signal lights for better visibility and safety at night This cycling vest has 4 LED signals: left, right, forward, stop, flashing lights to emergency signals, to remind drivers and passengers keep distance from you. When making a turn, simply press the corresponding button on the handlebar remote control without wire provided Back pocket padded with mesh to keep your cards and your money while improving breathability and comfort. Recharges from your computer or any device with USB port.No wasted on batteries and more environmentally friendly Ideal for roadside construction workers, tow truck drivers, traffic managers and parking attendants, also suitable for outdoor activities: running, biking, dog walking, jogging, car safety , motorbike, horse riding and other activities It is the safest option for visibility when traveling along the road, day or night.