Go down and check coupons out. Remember to check price history if it is available. What is best price?
Battery: 3.7V 400mAh lithium-ion, Flying Time: 6-7mins, Package Contents: 1x Drone (Battery Included), 1x G-sensor Controller, 2x Spare Battery, 4x Spare Propeller, 1x USB Cable, 8x Landing Pad, 1x English Manual, 1x Waterproof Storage Bag
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. Only one coupon available!
Link: Banggood product page
1. ($18.89): BGJJRCH37
apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): aff7off, rchobbies8, PCNETWORK, e2bcea, quad20, AFfbG10, BGVDay10%off, BGRC902, bGhOnEy10, 13f142, BGCuponation10
(you can check these old coupons out, but these probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – JJRC H37 Mini Baby Elfie Drone with Two Batteries ($-3)
Price history and price alert
Check out price history chart (for all/most countries) for JJRC H37 MINI BABY ELFIE With 4 Batteries.
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)).