Sold at different price points with modestly different cosmetics, JBL's new Micro II ($39) and Micro Wireless ($59) are compact, inexpensive, hockey puck-shaped speakers with integrated five-hour rechargeable batteries. While each system has a 3.5mm audio plug built in -- wrapping around the sides and back for easy storage -- only Micro Wireless includes Bluetooth streaming functionality as well. The 40mm single-driver design boasts a bass port, daisy-chaining…