reset button, 16M Flash，8M PSRAM, RTC, power indicator, WiFi, Built-in speaker, TF card slot (16G Maximum size), M-Bus Socket & Pins, built-in Bluetooth, vibration motor, PDM microphone, power button, Independent small board built-in 6-axis IMU, I2S amplifier, equipped with power management chip, Built-in lithium battery, capacitive touch screen, ESP32-based.
Go down and check coupons out. Remember to check price history if it is available. Let’s see what best price is ATM.
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 price update (UTC time):
Banggood
Banggood warehouse is located in Europe 
. I can’t tell you if this price is good – not enough records in my database, so I won’t judge.
Link: Banggood product page
1. ($55.19): BG8OFFCOUPON
2. ($56.39): BG00c906
put item in your cart and apply coupon code there after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGM5Aaron, BGRUMB15, BGcorem5, BGAFF10OFF, BGCuponation10, BGHONEY2110, BG71abed, 13f142, BG0782f4, BGf54afe, BGd0b05d, BANGGOODSD, BGb84e2c, 00c906, ADMITAD2212, 2022ACTIESNL, Terence, BG23b8b4, BG4b1323, Tabby20, 2203ActiesNL, BG1efeb0, 8Couponsde, MVC8SPRING, 8BGwbg2204, tRaDetRaCKeR, 8wEbgaInS5, hoNEYbGdeAlS, BGJUNEGSG9, DealBGimpact, BG8ReviTrage, Cuponation9, COUPONSDE1wk, BGcoupon8off, BGGutscheine, BG589b2e, JanBGCoupon8, BGSaleFeb8
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – M5Stack Core2 ESP32 Board Kit ($-3)
Price history and price alert
We don’t have enough records in database to show price history for this item. BTW: We have only recorded this price: $39.99.
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)).