bluetooth version: V 5.0, Charging time: 1.5 hours (for earbuds); 2 hours (for charging case via USB); 3.5 hours (for charging case via wireless charger), Audio code format: SBC / AAC / apt, Impedance: 8 Ω, Battery capacity: 65 mAhx 2 (earbuds); 500 mAh (charging case), bluetooth frequency: 2402-2480 MHz, Model: A3909, bluetooth range: 10m / 32ft, Input: 5 V ⎓ 0.5 A, Frequency response: 20 Hz – 20 kHz, Audio Source: iOS / Smartphone / Computer / PC / Notebook / MP4 / MP3., bluetooth profile: AVRCP1.6 / A2DP1.3 / HFP1.7, Brand: Anker, Water resistance: IPX4 (earbuds only).
You can create price alert here, copy coupons and view price history. 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 price update (UTC time):
Banggood
Banggood warehouse is located in China. Well, there is one coupon available right now.
Link: Banggood product page
1. ($150.19): BG1b5830
you should apply the coupon 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): BGA3909, 13f142, BG90bfb8, BGe1a0ca, BGd80715, BGBuscape01, BGfae6af, BGBRPL2, BG0c74d1, BGHOTSHOP15, BG19d841, BG7d1fc5, BGHU1433, BGad8522, BG53e9c8, BGa998c1, BGe3b5b3, BGAlerabatKL, BG393308, BGd173b4, BG62555e, BGROTTERD3, BGbb5eb9, BGAudioVideo, BGAUDIO, BGbd9ccb, BG9ba0e8
(these coupons are old, so probably won’t work)
Price history and price alert
Price history (for all/most countries) for Anker Soundcore Liberty 2 Pro Bluetooth Earphones ACAA is here. The lowest price was: $69.99.
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)).