Another great Goodwill score, some genuine Pioneer SE-L20A's. Honestly just picked them up based on the Pioneer logo, but upon further research they appear to be a very rare/obscure piece of tech.
Pioneer Bass Head Earbuds Red, SE-CL721 - Walmart.com
Pioneer SE-MJ561BT-T Wireless Headphones Brown | Techinn
Pioneer SE-205 Dynamic Stereo Headphone System Manual | HiFi Engine
Best Buy: Pioneer SE-CH9T-K Wired In-Ear Headphones Black SECH9TK
Pioneer SE-205 headphones. Classic Vintage. HI-FI. Stand and leather box included in the price.
Pioneer SE-50 | Headphone Reviews and Discussion - Head-Fi.org
Pioneer SE-M390 Headphones
Vintage Pioneer SE-205 Wired Studio Stereo Headphones | eBay
User manual Pioneer SE-MJ561BT-S (English - 196 pages)
Pioneer SE-Q 404 quadraphonic headphones. Classic Vintage. Stand included in the price.
Vintage Pioneer Stereo Headphones Model Se-2p Made in Japan for sale online | eBay
Pioneer SE-A1000 Lightweight Audiophile AV Over-Ear Headphones | Headphone Reviews and Discussion - Head-Fi.org