Price history, coupons and price alert are available on this page. Best price?
Input DC 5V 1A, Light Mode Fast Flash / Tidal / Blast Flash, Weight 370g, Fitting Head Circumference 57-61cm/22.4-24inch, Battery Life 26-36h With Light On, EPS, Standby About 180 Days, Head Width Less Than 16.6cm/6.5inch, Battery 3.7V 455mAh, aterial PC, Charging Time About 3h
Aliexpress
There’re some similar (or not) items on Aliexpress
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
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smart4u cycling helmet with tail light led road electric bike helmet for men/women city urban bicycle helmet brake light IPX4 | $60.27 | – |
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($105.27): 2022ACTIESNL
2. ($106.40): BG00c906
apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): dabbf7, 935bc1, BGSH01, 97c2b3, BGSH50es, Email3, AFfbG10, BGVDay10%off, BGAFF10OFF, bGhOnEy10, BGdragonBoat, BGSS10%SW, bgshOOp10, BGAKPO98, BgoFErTaSchInA10, BgcLuBofErtA10, BGCuponation10, 13f142, BG10OFFAFF, BG610813, BGwhielabel, 7bcdf9, BG10OFFAFF1, BG4d9120, BG2dc078, 00c906, ADMITAD2212
(there’s a little possibility that old coupon will work)
Price history and price alert
Here is price history (for all/most countries) for XIAOMI Smart4U Upgraded SH50 Bike Helmet White.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).