JBL has introduced the OnBeat Micro ($99) and OnBeat Venue LT ($199), the first Lightning-compatible speaker docks. OnBeat Micro is a portable, compact speaker with two full-range transducers that can dock the iPhone 5, fifth-generation iPod touch and seventh-generation iPod nano, but not the latest iPad or iPad mini. It offers five hours of playback with four AAA batteries, and includes an AC adapter for device charging, as well as a built-in USB…