Amazon has the JBL Clip 5 Ultra-Portable Waterproof Bluetooth Speaker (JBLCLIP5BLKAM) for $50 with free shipping. Features Big JBL Pro Sound
Integrated carabiner, 12-hour playtime plus boost, IP67 waterproof and dustproof, pair multiple speakers via Auracast.

$50 Shop Now

Amazon has the Alpine Corporation Solar Bluetooth Enabled Rock Speaker (Pair, Gray; QLP952SLR-GR-2) for $128 with free shipping. No wires required, powered via solar (but does include a micro USB charging port). 50-foot BT range.

$128 Shop Now