Woot offers Crosley Montero Portable Rechargeable Bluetooth Speaker with USB Phone Charger (CR3112A-BK) for $29.99 (reg. $84.99) free shipping with Prime. 

Product Description:
Elevate your audio experience to the max with the Montero Bluetooth Speaker! With 8 hours of uninterrupted play on a single charge, this 30-watt powerhouse will keep your party going all night. Stream your favorite tunes via Bluetooth, or connect a device with aux input. A speaker and a charger in one, the Montero features a USB port for when your phone battery is hovering way too close to 1%. Never again will a dead phone battery ruin your good time!
 

• PORTABLE BLUETOOTH SPEAKER: Enjoy your music anywhere with this portable wireless speaker; Connect to any Bluetooth-enabled device and stream your favorite playlist or podcast; The speaker also includes an aux input
• HIGH-QUALITY SOUND: The full-range 30-watt portable speaker delivers impressive sound
• POWER AND USB CHARGING: Equipped with a rechargeable lithium battery, this wireless speaker lets you listen to music on the go and charge your phone via micro-USB; With up to 8 hours of playtime on one charge, this speaker keeps the tunes flowing
• POWERING DOWN: Speaker must be disconnected from power before shutting off
• DESIGN: Inspired by 100 years of Crosley innovations, our products blend vintage looks with modern technology; Crosley Radio products are proudly designed in the USA and come with USA-based customer support