Product DescriptionMaterial: ABS+NylonSize: 25 * 25 cmControl distance: 3 metersWorking time: 12-15 hoursColor:dark grayQuantity: 1 piecePackage content: 1 piece * Cycling vest bag1. Safety shoulder strap and adjustable: Light touring backpack with reflective strips and signal LEDs for better visibility and safety at night.2. Easy to use: Control wirelessly with 4 signals (left, right, forward, stop), remind passengers and drivers to keep the distance.3. USB charging: Charge from your computer or any device using the USB port, no more wasted money on batteries again.4. Good Breathability: Back pocket padding the tie rod for holding your cards and money while improving breathability and comfort.5. Adjustable strap: Shoulder strap and the adjustable waistband for fit your body perfectly.