Here's what Fender say about the Mustang Micro Plus Headphone Amp:
Mustang Micro Plus takes everything players love about Mustang Micro to the next level. With 25 amps and 25 effects onboard, Mustang Micro Plus is the ultimate personal guitar amplifier. Micro Plus features 100 editable preset slots with Fender Tone App support, an integrated tuner, and display.
Everything you need to jam is built right in. Just plug Micro Plus directly into your guitar jack, connect a pair of ear buds or headphones, choose from a selection of amazing factory presets. And with built-in Bluetooth audio streaming, you can jam along to your favorite songs or guitar videos in real time.
