Speed Accuracy 0.1m/s, GPS Module SIRF 3 Chip, GSM Band 850/900/1800/1900Mhz, Max speed 515m/s, GPRS Class 12, Network GSM/GPRS, Maximum altitude 18, 000m, Warm status 32s, GPS Accuracy 10m (2D RM), TCP/IP built-in GSM module, Dimensions 90*45*12mm, GPS Start time Cold status 38s, Weight 45g, Gravity acceleration <4g, Hot status 2s, Voltage of Car Power System 7V-30V. Basically copy coupon, view price history or create e-mail price alert. 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 price update (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($28.88): BGAFF10OFF
2. ($28.88): BGCuponation10
you should apply the coupon 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): b71c67, BgAuMotor, AM15prime, AMPrime01, Automo, Automo1, 0e7f33, BGAutos, BGCARELEC
(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 TK110 Car GPS Tracker. The lowest price was: $12.39.
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)).