Woot offers JBL Wind 3S - Slim Portable Bluetooth Speaker for $29.95 (orig. $69.95). Free shipping for Prime Members.

*Also available: JBL Wind 3 Portable Bluetooth Speaker for $39.95 (reg $79.95)

Product Description:
Whether you're hiking the mountains, biking on a trail, laying at the beach, or even spending the day golfing, the Wind 3 Slim is your new compact on-the-go portable speaker. Introducing the Wind 3 Slim! The Wind 3 Slim is a bluetooth enabled speaker with two different EQ modes.
Choose whatever you like to suit your needs: Clipped onto your backpack shoulder strap, looped on a lanyard/tether, or even docked onto your bicycle handlebars with the included mount kit. JBL Wind 3 Slim delivers sound anywhere you go.
Dock/ Handlebar Mount

• Allow for effortless docking/undocking into included mounting bracket, specifically designed for bicycle & motorcycle handlebars.

Two different EQ modes

• ‘Sport’ mode recommended for outdoors
• ‘Bass’ mode is recommended more for indoors

Wireless Bluetooth Streaming

• Wirelessly stream music from your phone, tablet, or any other Bluetooth-enabled device. 

IP67 Waterproof & Dustproof

• Gives you the privelege to take your speaker mostly anywhere.