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Smart4u helmet is a comfortable companion while on the road. It is equipped with 7 high brightness LEDs, which will automatically turn on or standby according to the ambient light intensity. It adopts one button to control 3 lighting modes, with magnetic charging design, safe and worry-free. Built-in 455mAh battery allows for up to 36 hours lighting and 180 days standby. Designed with 12 ventilation holes, along with streamlined design, and sweat-absorbent strip, it will bring you all-round comfortable wearing experience.

Auto Light Sensor LED Flash Light

The smart helmet is equipped with 7 LEDs high brightness LED warning light sets with automatic light-sensing function, which will automatically turn on or standby according to the ambient light intensity.

One Key Control, Multiple Lighting Modes

The helmet uses just one button to control multiple lighting modes. On this helmet, there are clear flashlight and cool tide light in the automatic light mode, in the constant light mode it provides flashing lights, so you don’t have to worry yourself as there is always one suitable for you.

Magnetic Charging, High Performance Battery

The helmet comes with a magnetic charging design, making charge safe and worry-free. Built-in 455mAh battery supports up to 36 hours continuous light on and up to 180 days standby.

12 Ventilation Holes

Designed with 12 ventilation hole in accordance with aerodynamics, keep your head and face clean and fresh.

Premium Material, Integrated Design

Smart4u helmet sports a safer one-piece design. The outer casing is made of PC and the inner casing is made of imported PSI-205T high density EPS which makes it very solid and a very comfortable companion while on the road.

IPX4 Waterproof

With IPX4 all-round life and water repellent design, it can be protected from rain for a short time.

Delicate Details Bring Comfort All Round

Featuring streamlined design, multi-position adjustment, and sturdy sweat-absorbent strip, brings you all-round comfortable wearing experience during cycling.


Brand Xiaomi Youpin
Model SH50
Material PC + EPS
Waterproof IPX4
Lighting Effect Flashlight light, tidal light, strobe light
Battery 3.7V 455mAh
Usage Time 26-36 hours (consistent light on)
Standby Time 180 days
Charging Time 3 hours
Electrical Parameters DC 5V 1A
Product Weight 360g (Size M); 370g (Size L)
Head Circumference 54-58cm (Size M)
57-61cm (Size L)
Product Size 275 x 214 x 159 mm (Size M)
282 x 224 x 160 mm (Size L)
Package Contents 1 x Xiaomi Youpin Bicycle Helmet

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