$30.99 – Length of outer air pipe: 100MM + 10MM, Maximum inflation pressure: 150PSI, Product size: 185x85x55mm, Charging input voltage: 12V, Weight of main engine: 650g, Model: YX1819, Measurement accuracy: 1.5 PSI, Operating voltage: 11.1V, Operating temperature: -20℃~60℃, Voltage unit: PSI . BAR KPA . KG²/CM, Maximum current: < 6A.
Check if there is $30.99 coupon for Wireless Air Pump 15000mAh 150PSI (in Banggood). Go down and check coupons out. Remember to check price history if it is available. What is best price?
Latest coupon and price update (UTC):
Banggood ($30.99)
Banggood warehouse is located in China. So I have checked for active coupons (all category coupons and old ones), but there was no working coupon in Banggood. What about the price? Pretty good price – average ($37.87) is higher than current one!
Link: Banggood product page
Price: $30.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/i1u
Old coupons (from the oldest to the newest): BGCarEle5, BGSCM11, BG845979, BGLMQ15, BGCAR639, BGaf9ba6, BGAMMT03, BGd14d7b
(these coupons are old, so probably won’t work)
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.
Price history and price alert
Do you need price history chart (for all/most countries) for Wireless Air Pump 15000mAh 150PSI? There we go. The lowest price was: $25.99.
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)).