32-Bit Float Magic
With 32-bit float recording, you never have to adjust levels. The H1essential captures every nuance of your sound ensuring high-quality audio with every take.
Loud and Clear
The onboard X/Y microphones capture clean audio up to 120 dB SPL, equivalent to the sound of a high-performance engine.
Big Features, Small Package
The H1essential has advanced features such as overdubbing, pre-record, auto record, and playback speed adjustment.
Specifications: 
- 32-bit float recording: perfect audio with no need to set gain
- 120 dB SPL 90º XY Mics
- Records up to 96kHZ sample rate
- New OLED Display
- Overdubbing, auto record, pre-record and timer functions
- USB Microphone Function
- Audio guidance function for the blind and visually impaired
- 10 hours of battery life on 2 AAA Batteries or USB-C Bus power
INPUTS
| Built-in mic | 90º XY stereo format |  | 
|  | Directionality | Unidirectional | 
|  | Sensitivity | –37 dB/1 Pa at 1 kHz | 
|  | Maximum sound pressure input | 120 dB SPL | 
| MIC/LINE IN jack | Connector | Stereo mini jack | 
|  | Input impedance | 2 kΩ or more | 
|  | Plug-in power | 2.5 V | 
|  |  |  | 
| Built-in mic | 90º XY stereo format |  | 
|  | Directionality | Unidirectional | 
 
OUTPUTS
| PHONE / LINE OUT jack | Connector | Stereo mini jack | 
|  | Maximum output level | 20 mW + 20 mW(into 32Ω load) | 
|  | Output impedance | 10 Ω or less | 
| Built-in speaker | Type | 20 x 30mm oval dynamic speaker | 
|  | Practical maximum output | 250mW | 
|  |  |  | 
 
RECORDER
| Recording formats | WAV | 
|  | 44.1/48/96 kHz、32-bit Float | 
|  | Stereo / Mono | 
|  | BWF and iXML formats supported | 
| Recording media | 4–32GB cards compatible with the microSDHC specification | 
|  | 64GB–1TB cards compatible with the microSDXC specification | 
|  |  | 
 
USB
| Connector | USB Type-C | 
|  | • Use a USB cable that supports data transfer. | 
| USB Mic | USB 2.0 High Speed | 
|  | 48 kHz, 24-bit | 
| File transfer | USB 2.0 High Speed | 
|  |  | 
 
POWER
| 2 AA batteries | Alkaline, Lithium, or Rechargeable NiMH | 
| AC adapter | ZOOM AD-17: DC 5 V/1 A | 
|  | • USB bus power is supported. | 
|  |  | 
 
ESTIMATED CONTINUOUS OPERATION TIME USING BATTERIES
| Alkaline batteries | About 10 hours | 
| NiMH batteries (800 mAh) | About 9 hours | 
| Lithium batteries | About 18 hours | 
|  |  | 
 
Stereo recording, 48kHz/32-bit float, no headphones, Power Save 1min
These values are approximate.
Continuous battery operation times were determined using in-house testing methods.
They will vary greatly according to use conditions.
 
 
| POWER CONSUMPTION | 5 W maximum | 
| DIMENSIONS | 53.9 mm (W) × 136.6 mm (D) × 29.0 mm (H) | 
| WEIGHT (INCLUDING BATTERIES) | 92 g | 
|  |  |