Controller Battery: 2*1.5AA Batteries(Not included), Package Size: 24.8*11.8*31CM, Charging: USB Charging, Product Size: 20*9.5*27.5CM, Playing Time: About 3 hrs, Charging Time: 1.5 hrs, Applicable Age: 8+, Battery Capacity: 3.7V 1200mAH Lipo Battery(included).
Basically copy coupon, view price history or create e-mail price alert. What is the best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
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. ($37.79): BGAFF10OFF
2. ($37.79): bGhOnEy10
3. ($37.79): BGdragonBoat
this code has to be applied in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): R510, e2bcea, 502C6B, AFfbG10
(these codes were not working in latest coupon update, but you can check them out anyway)
Price history and price alert
Check out price history chart (for all/most countries) for JJRC R5 RC Robot. The lowest price was: $30.99.
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)).