1* Light Sensor, 1* Tracking Sensor, 18* ZX361D Servo, 1* Voice Sensor, 1* Infrared Sensor, 1* PS2 Stick, 1* USB Wire, 1* Ultrasonic Module, 1* MP3 Module, 1* Arduino Sensor Board, 1* Infrared Controller, 1* Inclination Sensor, 1* Charger, 1* Grayscale Sensor, 1* 7.4V 2600mAh Battery, 1* Robot Body Set, 1* Speaker, 1* Bus Servo Control Board, 2* RGB Light, 1* Sensor Wire.
Basically copy coupon, view price history or create e-mail price alert. 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 coupon available! Pretty cool, huh?
Link: Banggood product page
1. ($657.99): 7bcdf9
paste coupon code in your cart and click Apply 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): ZL10, 502C6B, TTxBG10, Robot32, BGZL15, BGZL10, 2019SPEDM, AFfbG10, BGCITYADS2019, BgcLuBofErtA10, BGAFF10OFF, BGCuponation10, BGHONEY2110
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Price history and price alert
Do you need price history chart (for all/most countries) for ZL-TECH QF-6 RC Robot? There we go. The lowest price was: $526.99.
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)).