Product Name: New Night Cycling Wireless LED Pilot Lamp Attached Bicycle Turn Signals for Bikes Backpack Model NO.: M-02 Color: Yellow Fashion Element: Crocodile Grain Suit for: Outdoor Season: All Capacity: Medium Style: LED Bag Usage: Sports, Camping & Traveling, Student Material: Nylon Gender: Unisex Function: LED Signal Trademark: jingpei Transport Package: Box Specification: CE Origin: China Product Description M-02 Bicycle Safety Lamp Back Pack SpecificationsProduct Description l Main function: Lighting, warning, security, etc. l Working frequency: 2.4 GHzl Transmission distance: 3 meters (depending on the surroundings)l Battery of the transmitter: 2 pieces of button cells 2032 l Battery of the receiver: Built-in lithium Battery (650mAh)l Working time: 24 hoursl Charging: DC 5V 500mAl Material of back pack: Dacronl Product Size: 220mm*380mm*75mml Capacity: 5Ll Weight : 650g l Turn signal pattern: right, left, forward, stopl Product Accessories: a transmitter, a receiver, a user manual, four zip-tightsl Usage: Hiking,camping,traveling, cyclingl Certificate: CE, FCC, ROHSl Storage Temperature: -30ºC to 80ºCl Operating Temperature:-10ºC to 60ºCPackageNet Weight480gGross Weight650gFunction:1. LED remote control warning backpack is like traffic lights. When you want to turn left, right or stop, a corresponding signal will be sent by remote control. 2. Whenever you ride day and night, warning lights will keep you safe by reminding people around you.3. Lighting, warning by remote control, easier-operating and security are the characteristics. 4. Steel suspension system: your back needn't to touch bag directly in order to perspire and keep it dry.5. Whistle on chest in case of emergency.6. Hydration system for easier to drink water7. Double compartment is designed for parting different goods.8. Fashionable style and unique appearance get you outstanding.