3.7V, Battery Capacity 80mAh, bluetooth Version V4.1+ EDR, Playback Time 5h, Charging Input 70MA-1A, Standby Time 80h, Transmission Distance 10m, Input Voltage DC5.0V, Frequency Response 2402.0-2480.5MHz, bluetooth Profiles A2DP AVRCP Headset Headsfree, Waterproof IPX4, Call Time 6h, Charging Time 1h.
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 China.
Link: Banggood product page
1. ($14.44): BGLOAC1
2. ($15.29): BG4BW25
3. ($15.99): 13f142
this code has to be applied in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BG89BH1, 899BH1, 15bh1, 12blitzw, aff7off, BGBWBH1, BGss10%bw, BGBH1CC, BGBH1ZM, AFfbG10, BGTWS20, BGBH1ZMQ, BGXMBH1, 502C6B, BGBH1BT, d3ea27, BGRBH1, BGVDay10%off, EARSP11, BGAFF10OFF, bGhOnEy10, BGBW152, BGBWUU1, BGSS10%SW, bgshOOp10, BGELIG0920, BGHALLOWEEN, BG11SHOP, 10%ForNewBW
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – BlitzWolf BW-BH1 Bluetooth Earphone [EU] ($-3)
Price history and price alert
Do you need price history chart (for all/most countries) for BlitzWolf BW-BH1 Bluetooth Earphone? There we go. The lowest price was: $7.99.
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)).