Dual Display QC3.0 PD20W FM Bluetooth Transmitter Charger (Banggood, Aliexpress: USB Output: QC3.0+5V1A+PD(20W) Fast Charger, Colorful light: Green /Blue /Red /Yellow /Light blue /Purple /White /7 color cycles, FM Frequency: 87.5-108.0MHz, Dual USB Output: 5V 3.1A/5V 1A, Bluetooth version Bluetooth 5.0, Limited voltage: 9-30V, Feature: Support U Disk/TF card/SD card playback music, Combination: Bluetooth-Enabled / USB Port, Play Format: MP3/WAV, Working Voltage: 12-24V (the best price with coupon)).
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Aliexpress
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Banggood
Banggood warehouse is located in China. I found coupon for you. Check this out.
Link: Banggood product page
1. ($15.97): BG00c906
you should apply the coupon in your 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/5cd
Old coupons (from the oldest to the newest): Cuponation9
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Price history and price alert
Check out price history chart (for all/most countries) for Dual Display QC3.0 PD20W FM Bluetooth Transmitter Charger. The lowest price was: $12.99.
Price records source(s): Banggood
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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)).