From Fender:

“If there’s one thing Fender knows, it’s inspirational tone. Combining our hard-earned expertise with feedback from players around the world and brand-new technology, we created the Rumble Studio 40 digital bass amplifier. Perfect for rehearsing and recording, the Rumble Studio 40 harnesses the potent processing power of our GT engine to deliver a studio’s worth of realistic bass amp and effects models. Create your own sound and get inspired with over 15 amp models and 40 effects – all controllable via Bluetooth and the exclusive Fender Tone app.”

• 40-watt WiFi-equipped digital bass amplifier
• One 10″ Fender Special Design speaker; compression tweeter
• Free, exclusive Tone App for one-touch preset access, management and editing
• New models and effects with “spillover”
• Bluetooth audio streaming and control
• Stereo send and return; AUX input; XLR line outputs; USB output; headphone output
• Onboard 60-second looper; setlist support
• Optional MGT-4 footswitch for control of presets and effects, tuner and looper access