Woot offers PUMA Wireless Portable Bluetooth Outdoor Speaker with built-in Carabiner Clip, Ball Marker, Bottle Opener, and Charger for $29.99 (orig. $129.99). Free shipping for Prime Members.

Product Description:
The PUMA Wireless Portable Bluetooth Outdoor Speaker delivers 10 hours of battery life with phone charging capabilities. Forgot a bottle opener? This speaker has you covered with a built-in opener. So tee-it-up and turn-it-up on the links all year long.
Features:

• Compact and portable easily stores in your bag when not in use.
• Bluetooth 5.0 speaker for crisp sound features a stretchable silicon strap that holds phone or attaches to golf cart.
• Carabiner clip for easy attachment includes built in ball marker and bottle opener.
• USB rechargeable lithium battery offers a 10 hour battery life and can be used to charge cellular phone in a pinch.
• USB-C and USB-Micro input charging ports, USB-C output charging port
• Great for all outdoor situations including biking, hiking, the beach, golfing or any outdoor activity.