【Direction Indicator Keeps You Safe on the Road】This reflective LED bike pack accessory is equipped with reflective strips and LED lights. The LED will respond to signal received from remote controller, which will remind passengers and drivers to keep distance from you. 【Easily Assembled】This LED reflective bag accessory can be easily assembled on your own cycling backpack. It`s just a foam panel that attached to a bike backpack. Absolutely a perfect add-on for road cycling. 【Wireless Remote Control】Wireless control, safely used when riding. Tied or mounted the wireless transmitter on the bike, so you never have to take their hands off the handlebar. It can be used as a wireless bike turn signal light. 【4 LED Signals】It has 4 Led signals: left, right, forward, stop, from turn signals to emergency signals, to reminder drivers to keep their distance. Specification: Operating frequency: 2.4 GHz Transmission distance: 3 meters Remote control battery: Two 2032 button batteries Receiver battery: 650mAh Working time: 24 hours Charging: DC 5V 500mA Remote control shell: PC+ABS Receiver exterior: nylon, Oxford cloth Product size: 235mm*240mm*15mm Elastic bandage length: 185mm, 300mm (maximum stretch) Storage temperature: -30℃ ~ 80℃ Operating temperature: -10℃ ~ 60℃ Indication type: turn left, turn right, forward, stop