Aliexpress
Click here… to search for DJI Spark GL100A Transmitter on Aliexpress
Here are coupons that you can use.
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – DJI Spark GL100A Transmitter [EU] (-3 USD)
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. So I have checked for active coupons (all category coupons and old ones), but there was no working coupon in Banggood.
Link: Banggood product page
Price: -3 USD
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
Old coupons (from the oldest to the newest): TTxBG10, Parts8, bgssaff9, AFfbG10, 502C6B, BGBFAFF2019, BGCITYADS2019, BGAFF10OFF, BGTT10, bGhOnEy10
(there’s a little possibility that old coupon will work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – DJI Spark GL100A Transmitter [EU] (-3 USD)
Price history and price alert
Price history (for all/most countries) for DJI Spark GL100A Transmitter is here.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).