Amazon has Bluetooth Speaker with HD Sound, Portable Wireless, IPX5 Waterproof, Up to 20H Playtime, TWS Pairing, BT5.3, for Home/Party/Outdoor/Beach, Electronic Gadgets, Birthday Gift (Black) on sale for $19.99. Shipping is usually free to Amazon Prime members or on orders over $35.

Since prices on Amazon change frequently, please review the current price at the product page before making a purchase.