When I was updating this page the price was $11.99 for Xiaomi Mijia Lint Remover (in Banggood). You can create price alert here, copy coupons and view price history. Best price?
Latest coupon code price check (UTC time):
Power: 2W, Working Time: 90 Minutes, Charging Time: 2 Hours, Frequency: 5V=1A, Model: MQXJQ01KL, Cleaner Types: Lint Removal, Voltage: DC3.7V, Color: White
Banggood ($11.99)
Banggood warehouse is located in China. Is it a low price? Well, this price is higher than average price ($10.74) Only one coupon available!
Link: Banggood product page
Price without coupon: $13.99
1. ($11.99): BG568373
apply code in your basket (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): BGXMLR, PICODICOM, BG90MINUTPL, BGMiNew2, BGTEP2, BGMumlatzimMN, BG2MiFuzz, BGXMLRM, BGCITYADS2019, BGXMRML, BGMJ90MN, BGMJTRM, bGpAnDacHeCk, bg10p99, BGMJTRMV, BGTRMBH, 2020CNY, BGTRYM, BGMi77, BGMJ90, BG2SB2, BGXMLRF, BGXMWR, BGAHOFF, BGHOMEAPP, BGXMHY, BGXMTRM, bGhOnEy10, BGHYS1, BGXIAOMI811, BGHB20, BG11716, BGSVER1, BgcLuBofErtA10, BGXMLR999, 13f142, BG71817, BGPTU181, BGAFF10OFF, BG19561, BGA71817, BGDC817, BGS1817, BGD71817, BGHONEY2110, BGCN1877, BGMAY013, BGAE0507, BG10OFFAFF, BGjune02, BGISRAE999, BGAEjune18, BGjune101, BGwhielabel, BGisrale55, BGjuly35, BGd159c, BG10OFFAFF1, BGdb1e37, BG1a59e1, BGXMLRES, bgshOOp10, BGLRMCZ, BGXMLRMG, BGXMTFK, BGHOMEAPP12, BG9XMTMK, BGHOMEAPP13, BGMQXJQ01KL, BGHU0154, BGHOMEA13, BGMJKL11, BGCDC012, BGWQ01KL, BGBFC006, BGMQMJ12, BGJQ01KLCZ, BGCZ01KL, BGMQXJQ01KLCN, BGQ01KLES, BGCuponation10, BGMQXJCZ, BGCFME14, BGHU0398, BGQ01KLCZ, BGLMXMH, BGJQ01KL, BGKRFSF, BGACZXMLR, BGACZXIMI, BG72c4f8, BG1f909b, BGHU0833, BG6e3943, BGd13c9f, BANGGOODSD, BGHealth06, BGDBU46, BGDC1129, BGHW125, BGIS146, 00c906, BGf0f255, 2022ACTIESNL, BG40b07e, BGIS0307, 2203ActiesNL, MVC8SPRING, BG7785cd, BGjune08d, BGjune10b, BGjune29b, BGxiaomiCUT, BGxiaomiCUTa, BGAHPU13, BG8ff28a
(probably won’t work, but you can try them out)
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Price history (for all/most countries) for Xiaomi Mijia Lint Remover is here.
Price records source(s): Gearbest, 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)).