HiFiGo Binary EP321
The world's first direct-drive MEMS driver eliminates the need for a special amplifier, delivering 40kHz high-frequency resolution from any standard 3.5mm device. Its 6-driver hybrid array combines a 10mm dynamic driver with a 6mm passive radiator for fatigue-free, controlled bass, housed in lightweight 7.5-gram 3D-printed resin shells with iridescent CNC steel faceplates. This IEM is best for musicians and audiophiles seeking studio-monitor precision and natural vocal separation for critical listening or mixing.
form factor in-ear
driver type hybrid
35 Overall Score
Price ¥58,701
Snapshot
The proof
Performance
Specifications
Full Specifications
Design
| Form Factor | in-ear |
| Ear Tips | XS, S, M, L |
Audio
| Driver Type | hybrid |
| Driver Size | 10 |
| Drivers | 6 |
| Freq Max | 40000 |
| Impedance | 13 |
| Codecs | HiFiGo Binary EP321 MEMS in-Ear Monitor, Direct-Drive MEMS Earphones, 3BA +2DD+1MEMS Hybrid IEM with Iridescent CNC Stainless Steel Faceplates for Musician Audiophile (3.5mm) |
Connectivity
| Wired Connector | 3.5mm |
Earbud Battery
| Charging | USB-C |
Case Battery
| Case Charging | USB-C |
Microphone
| Microphone | Yes |
vs Competition
| Spec | HiFiGo Binary EP321 | Cleer ARC 3 M30-ABS-KT2-WM | JBL Sense Lite | TIMU AI Translation Earbuds Real Time | DUNU ITO | Bang & Olufsen 1241000 |
|---|---|---|---|---|---|---|
| Form Factor | in-ear | open-ear | open-ear | in-ear | in-ear | - |
| Driver Type | hybrid | graphene | dynamic | dynamic | hybrid | - |
| Wireless | - | true | true | true | - | - |
| Active Noise Cancellation | - | true | false | false | - | - |
| Bluetooth Version | - | 5.4 | 5.4 | 5.4 | - | - |
| Battery Life Hours | - | 10 | 8 | 7 | - | - |
| Case Battery Hours | - | 50 | 32 | 50 | - | - |
| Water Resistance | - | IPX7 | IP54 | - | - | - |
| Multipoint | - | true | true | - | - | - |
| Compare | Compare | Compare | Compare | Compare |
| Product | Anc | Mic | Sound | Battery | Comfort | Connectivity | Social Proof |
|---|---|---|---|---|---|---|---|
| HiFiGo Binary EP321 | 32 | 44.9 | 98.1 | 49.4 | 29.5 | 35.8 | 30.5 |
| Cleer ARC 3 M30-ABS-KT2-WM Compare | 97.5 | 71.7 | 92.1 | 94.5 | 29.5 | 93.8 | 97.5 |
| JBL Sense Lite Compare | 66.3 | 92.1 | 55.9 | 85.2 | 94.6 | 95.1 | 56.8 |
| TIMU AI Translation Earbuds Real Time Compare | 32 | 92.1 | 82.2 | 90.5 | 29.5 | 78.3 | 36.5 |
| DUNU ITO Compare | 32 | 14.6 | 96.3 | 49.4 | 1.3 | 13.6 | 47.5 |
| Bang & Olufsen 1241000 Compare | 32 | 14.6 | 31.5 | 49.4 | 29.5 | 13.6 | 10 |
Price
Value & Pricing
From ¥58,701
Amazon.co.jp 1 offer From ¥58,701
We started tracking prices for this product on Jul 5, 2026. The chart appears once we have more data.
