Just check coupons out (with price alert and history). What is the best price?
bluetooth Version: V3.0, Remote Battery life: 20, Model: BW-BS10 Remote, Battery Capacity: 50mAh, Charging Voltage: 5V, 000+ Consecutive Photos, Charging Time: 30 minutes, Charging Current: 0.5-2A, Working Time: 24 hours
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. I couldn’t find any coupon for this product on latest product update.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): AFfbG10, bGhOnEy10, BGBW152, BGdragonBoat, BGAFF10OFF, BGSS10%SW, BgoFErTaSchInA10, BgcLuBofErtA10, 10%ForNewBW, BG4BW25, 10%ForBGBW, BGHONEY2110, 13f142, BANGGOODSD, 6GSGIT
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
Price history (for all/most countries) for BlitzWolf Remote for BW-BS10 Selfie Stick is here.
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)).