Always-free

• Dozens of amp sims, cab sims and effects
• A wide array of stock backing tracks in various keys and styles
• Thousands of Sessionmaster™ tones from the Auto-Roadie™ library
• Fully voice and/or touchscreen controllable
• Magnetic→acoustic and piezo→acoustic simulation

Auto-Roadie™ features ($0.99/mo or $0.80 w/Prime)

• 100+ fully-automated, playable iconic tracks from rock history
• Tones, loopers and mix happen automatically during playback
• Perfectly-synchronized lyrics and chords

Minimum requirements

• Echo Show 5, 8 or 10 or Fire TV or Fire Tablet
• Any electric guitar
• Any headphones or speakers (mileage will vary)
• WiFi

Recommended requirements

• High quality, full-range speakers
• More guitars for greater tonal accuracy:
• HSS or both SSS and HH guitars
• Plug-in acoustic
• Piezo-equipped electric (highest recommendation)
• Modeling guitar (Variax, Acoustasonic, etc)