Go down and check coupons out. Remember to check price history if it is available. Do you want to know what the best price is?
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
Signal-to-noise ratio ≥58db, bluetooth version 5.1, Microphone Sensitivity 109dB±3dB, Standby time 350 hours, Distortion ≤5%, Transmission Distance 8-10m, Speaker size 13mm, Charging time 1.5 hours, Frequency Response 20-20kHz, Brand Lenovo, Music time 20 hours, Model New LP40 (2021), Capacity “Earphone: 30mAh Charging Case: 300mAh”, Impedance 32Ω±15%
Banggood
Banggood warehouse is located in China. Coupons for Lenovo LP40 Bluetooth 5.1 Earphones? Nope, there’re no coupons in Banggood.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG3bd768, BG1bde19, BG88ecc6, BGe4e9db, BG651551, BG422913, BG1776ed, BGHOTSHOP15, BGd89018, BGAlerabatKL, BGYBL40N, BGc1204c, BGAudioVideo, BG97c481, BGDELP40K, BG89ff00, BGAUDIO, BG3ac128, BG900c9d, BG1f1727, BGcee064, BG9ba0e8, BG707ce4, BGf5db77, BG917641, BG1b5830, BGac8ffa, BG729a22, BGGRJANX5, BG2bff5f, BGc422b0, BG412561, BGe7087a, BG5a25be, BGb2f724, BGAudio3, BGAudio9
(probably won’t work, but you can try them out)
Price history and price alert
Here is price history (for all/most countries) for Lenovo LP40 Bluetooth 5.1 Earphones.
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)).