Frequency Response 20-20kHz, Wearing Type In-ear, Color Black, White, Microphone Yes, Model XT90, Supported Profiles HSP/HFP/A2DP/AVRCP, Brand Lenovo, bluetooth Version V5.0, Support Audio decoding AAC, Material ABS+PC, Transmission Distance 33 feet (10m).
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 Europe 
. I don’t know if this is a good price – number of records in my database is too low!
Link: Banggood product page
1. ($22.09): BGBRPL2
2. ($22.09): BGHOTSHOP15
apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BG28XT90, BGSYXT90, BGAAXT90, BGBFEE02, BGLOAC1, 13f142, BGcbca14, BGd7a5bb, BG571ca6, BG320286, BGa0b145, BG151e61, BGBuscape01, BG1a2af4, BG651551, BG514373, BGAlerabatKL, BGd173b4, BGAudioVideo, BGAudio3, BGAudio9
(there’s a little possibility that old coupon will work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – Lenovo XT90 TWS Bluetooth 5.0 Earphones ($-3)
Price history and price alert
Well, you won’t see price history chart, coz we have only 1 database record for this item (and price was $15.99).
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)).