Aliexpress
There’re some similar items on Aliexpress in my database. There may be some other items though.
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
 |
Mini External Usb To 3.5mm Mic Headphone Jack Stereo Sound Card | 1.97 USD | – |
 |
GraveAudio DA06 CX31993 HiFi USB DAC Type C To 3.5mm Headphone Amplifier | 7.78 USD | – |
 |
UGREEN DAC Chip USB Type C to 3.5mm Jack Headphone Adapter Cable | 13.27 USD | – |
 |
H25L USB Type C Rechargeable Headlamp LH351D | 20.14 USD | Paste $2,09/20,86 coupon “3794LPQJ2QI3” in the cart |
 |
FIFINE Headset 3.5mm & USB Headphones | 32.37 USD | – |
 |
HiBy FC3 MQA Dongle USB DAC Audio Headphone Amplifier | 42.90 USD | – |
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. You can get coupon down below.
Link: Banggood product page
Coupon (12.17 USD): BG589b2e
(CouponsFromChina.com tip: just apply this code in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BG75597c, BG921131
(these codes were not working in latest coupon update, but you can check them out anyway)
Price history and price alert
Here is price history (for all/most countries) for 3 Head USB Wireless Neck Electric Massager.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).