Looks like it is official now:
R4 Features
- 4 Tracks of Recording + Dedicated Bounce Track
- 2 XLR/TS combo inputs for guitar, bass, keyboards, microphones and more
- Built-in Omnidirectional Microphone
- Dual AD circuitry with 32-bit float recording technology
- Color LCD Display
- Built-in effects including EQ, Reverb, Compression, and Guitar effects
- 4 Faders for Volume Control
- USB Audio Interface Function
- Runs on 4 AA batteries or external USB-C battery
$199 at B&H and Sweetwater