Smart4U Upgraded SH50 Bike Bicycle Smart Helmet Light Sensing Braking Warning LED Breathable For Flido D4S

Specifications BrandXIAOMIModelUpgraded SH50ColorBlack WhiteMaterialPC EPSLight ModeFast Flash Tidal Blast FlashBattery3 7V 455mAhBattery Life26 36h With Light OnStandbyAbout 180 DaysCharging TimeAbout 3hInputDC 5V 1AFitting Head Circumference57 61cm 22 4 24inchHead WidthLess Than 16 6cm 6 5inchWeight370gFunctions ModelUpgraded SH50 SH50 Standard Version Click to enter the page Auto Light SensingAuto Brake Warning LightLong Battery LifeMagnetic ChargeAuto ShutdownIPX4 Water ResistantFeatures 1 Auto light sensing LED warning light bright but not dazzling 2 Auto on or standby according to the light intensity the polished lens with over 180m visual range 3 Auto brake warning light when its detected that you have an obvious slowdown the light will auto shine for 2s 4 180h super long standby time 36h battery life 5 Convenient magnetic charge 6 Auto shutdown after leaving it for 20min 7 12 breathable vents 8 Integrated design PC material shell PSI 205T high density EPS integrated craft with strong impact resistance 9 IPX4 water resistant 10 Multi gear adjustment rotary button 11 Solid sweat absorbing strap Package Included 1Cycling Helmet1Charging Cable