All of our engineers are musicians and they designed the R4 to empower musicians to explore big ideas. With a unique dedicated bounce track and 32-bit float recording, the R4 is perfect for capturing your most ambitious compositions.With the R4, you can record up to four tracks, mix and then bounce them to the dedicated bounce track. This lets you free up additional tracks to keep adding layers. You can choose to do a quick bounce or mix and bounce in real time. The R4 also allows you to undo your last bounce, if youre not satisfied with the results.The R4 has 2 XLR/TS combo inputs with legendary Zoom preamps. You can plug in microphones, instruments, keyboards, and more.Each track features a 3-band EQ, pan, echo, and reverb to refine your mix.Apply effects to input A such as amp simulations, delays, distortions and more.The R4 features a high-quality built-in microphone, perfect for acoustic guitars, vocals, or capturing a quick reference recording.The R4 has a rhythm section preloaded with over 80 different drum patterns to play along with featuring genres such as rock, hip hop, funk, heavy metal, and more.Tracks that you record are automatically saved individually, even after they have been bounced.The R4 is also a powerful 2-in/ 2-out USB audio interface with 32-bit float technology. Connect it to either your computer or smartphone.With a fader for each track and dedicated hardware buttons for the most used functions, you wont need to menu dive to record your music.The R4 can be powered by 4 AA Batteries, or through its USB-C port.Main Features:4 Tracks of Recording + Dedicated Bounce Track2 XLR/TS combo inputs for guitar, bass, keyboards, microphones and moreBuilt-in Omnidirectional MicrophoneDual AD circuitry with 32-bit float recording technologyColor LCD DisplayBuilt-in effects including EQ, Reverb, Compression, and Guitar effects4 Faders for Volume ControlUSB Audio Interface FunctionRuns on 4 AA batteries or external USB-C batterySpecifications:XLR/TRS Inputs:-Connectors: 2 XLR/TRS combo jacks (Balanced, XLR: 2 HOT)-Input gain: No adjustment required (dual A/D converter circuit used)-Input impedance: XLR: 2.3 k, TS: 1 M-Maximum iput level: XLR: +4 dBu-Phantom power: +48 V (switchable separately for INPUTS A and B)-Equivalent input noise: XLR: 120 dBu or less (IHF-A), TS: 107 dBu or less (IHF-A)-Frequency Response: XLR: -0.5 /+0.0 dB : 20 Hz – 20 kHz, TS: -0.2 /+0.0 dB : 20 Hz – 20 kHzBuilt-in Mic Input:-Directionality: Omnidirectional-Input gain: No adjustment required (dual A/D converter circuit used)-Maximum sound pressure input: 115 dB SPLHeadphones Output:-Connector: 1 stereo 3.5mm mini jack-Output impendence: 10 -Maximum output level: 20 mW + 20 mW (into 32 load)Recorder:-Maximum simultaneous recording tracks: 2-Recording format: WAV: 48kHz, 32-bit float, mono-Recording media: Cards compatible with microSDHC specifications 4 GB 32 GB, Cards compatible with microSDXC specifications 64 GB 1 TBDisplay: 2″ full-color LCD (240 320)USB:Connector:-USB Type-C-Note: Use a USB cable that supports data transfer. USB bus power is supported.Audio Interface Function:-Class: USB 2.0 High Speed-Sampling frequency: 48 kHz-Bit rate: 24-bit/32-bit float-Input / output channels: 2 in/2 outMass Storage Function: USB2.0 High SpeedPower Supply:-Batteries: 4 AA (alkaline, lithium, or rechargeable NiMH)-AC adapter: ZOOM AD-17 (5V/1.0A)* USB bus power is supported.Estimated continuous operation time using batteries:-Alkaline batteries: about 7 hours-NiMH batteries (1900 mAh): about 6 hours-Lithium batteries: about 14 hours* Use conditions: Recording 1 track, playing 1 track, phantom power off, headphones into 32 load, power saving on* The above values are approximate.* Continuous battery operation times were determined using in-house testing methods. They will vary greatly according to use conditions.Power Consumption: 5WExternal Dimensions: 74 mm (W) 138 mm (D) 36 mm (H)Weight (including batteries): 287g