Power supply: powered by 2 CR2032 button batteries （INCLUDED）
Function mode: Press the 1 button to light up, press the 2 button to flash "SOS"
Product use: Tied to the arm or tied to the leg to make your night riding and night running or walking safer
occasions: running, walking, outdoor activities, cycling,
Also suitable for pets
Weight: 65 grams
Size: product expansion 40-50cm
folding length 18.5*2.5cm
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