Product Information: Applicable gender: male, female, neutral / both male and female Color: single 047 front light, 047 front light + 056 tail light, upgraded front light, upgraded front light + tail light Size: special size Model: USB charging hj-047 photosensitive headlight Light: white light Colour: Black . Function: Click to enter, click to shift: highlight-low light-SOS flashing-fast flashing-off Battery: Use 1 polymer Li battery Size: about length 100*width 32*thickness 24mm; Taillight product size 7*2*1.7cm Packing List: Plastic photosensitive headlight x1