Frequency: 1Hz, Size: 28×18.5×0.5cm, Power supply: 1x CR2020 button battery, Weight: About 180g, Material: ABS+ Electronic Parts, Input Pressure: 10~20 GInput Voltage: AC 36V.
Just check coupons out (with price alert and history). You probably want to know 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. There is one great coupon!
Link: Banggood product page
1. ($17.57): BG589b2e
coupon code has to be applied in shop’s cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/i1u
Old coupons (from the oldest to the newest): 502C6B, BGoffice1, AFfbG10, BGAFF10OFF, BGIL774, bGhOnEy10, BGLU591, BGdragonBoat, BG0701007, BG072010, BGLUD774, BG8868, bgshOOp10, BGMF774, BgoFErTaSchInA10, BGHU0080, BGIN1027, BGRLCD12, BGHUS06, BGSPZ02, BgcLuBofErtA10, BGHUW06, BGAU591, BGCNY591, BGEES06, BGNFA591, BGCuponation10, BGHU0361, BGNFF591, BGMF928, BGLYW291, BG3e4db3, BG439666, 13f142, BG63479f, BG7a6123, BG7712b7, BG3f5f12, BG6ae4a0, BGf9bdcf, BGcb82a1, BGDBZ38, BG328969, 00c906, BG00c906, BG08c07e, 2022ACTIESNL, BGea8d2a, BG107c8c, 2203ActiesNL, BGc0013d, BG1efeb0, 8Couponsde, MVC8SPRING, BG23b341, BGf31e35, BG580623, BG168405, BG1237db, BGe27d71, BGf0bc3a, BGac5892, 8BGwbg2204, BG0ea5a8, tRaDetRaCKeR, BGb931fe, 8wEbgaInS5, BG357ebf, BGd796af, BG2576c1, BGJUNEGSG9, BGJUNYB1, BGHUXC016, Cuponation9, BG4af28f, BG062481, BG5bfd28
(these codes were not working in latest coupon update, but you can check them out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – 12 Inch LCD Writing Tablet [EU/CZ] ($-3)
Price history and price alert
Price history (for all/most countries) for 12 Inch LCD Writing Tablet is here. The lowest price was: $9.99.
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)).