A firmware update (v1.1.11) for Fender's popular ultra-compact guitar and bass amp, the Mustang Micro Plus, has been released!
The latest firmware adds classic Fender bass amps such as the Super Bassman, Rumble V2/V3, and Bassman TV, as well as 10 iconic bass amp tones, including the Dual Showman, SWR Redhead, Rockin' Peg, Flip Top, KGB 800, and Monster, along with 25 effects, evolving the Mustang Micro Plus into the ultimate practice accessory for both guitarists and bassists!
The Mustang Micro Plus's sound is so realistic you'll forget you're practicing with headphones. It also features a switchable input pad function for basses with high-output pickups or active circuitry!
For more details, please see the official Fender FAQ below.

Fender Official FAQ

FENDER / Mustang Micro Plus