QuickShip Electronics via eBay offers the Pioneer Mini Stereo System for $99.99. Apply coupon code "PSUMMER20" and check out with PayPal to drop the price to $79.99. With free shipping, that's $20 under our mention from last month and the lowest price we've seen. (It's also the best deal we could find now by $117.) It features two speakers, a CD player, AM/FM radio, Bluetooth 4.1 with NFC pairing, and USB. Deal ends June 20.

Note: This coupon can be used once per PayPal account within a single transaction.