





π§ Hear Every Detail, Miss Nothing.
The Etymotic Research ER4SR Studio Reference In-Ear Monitors set the gold standard for professional audio fidelity with industry-leading 1dB channel matching and 92% frequency accuracy. Featuring precision balanced armature drivers, durable anodized aluminum construction, and customizable ear tips, these wired monitors deliver unparalleled sound isolation and comfort. Each pair is meticulously assembled and tuned in the USA, complete with a signed compliance chart, making them the ultimate choice for audiophiles, engineers, and critical listeners who demand flawless sound reproduction.








| Noise Control | Sound Isolation |
| Sensitivity | 45 Ohm |
| Headphones Jack | 3.5 mm Jack |
| Model Name | ER4SR |
| Connectivity Technology | Wired |
| Included Components | In-Ear Monitors Detachable 1.5m cable with 3.5mm gold plated stereo jack Assortment of earplugs: 4 double flange silicone pairs: S, M, L, XL. 2 pairs of triple flanges: standard and large. and 2 pairs of foams: standard filter removal tool and replacement filters to protect BA drivers from earwax, shirt clip, zippered storage case, channel matching compliance certificate |
| Age Range (Description) | Adult |
| Material | Aluminium, Metal |
| Specific Uses For Product | Music |
| Recommended Uses For Product | High-fidelity audio listening, Professional monitoring, Critical listening, Portable use |
| Compatible Devices | Android,iPhone,iPod,iPad,PC,Mac,Laptop,Computer,Mobile Phone,Apple iPhone,Samsung Galaxy,HTC,iPhone 4,iPhone 4S,iPhone 5,iPhone 5S,iPhone 6,iPhone 6S,Galaxy S6,Galaxy S7,DAP,High Resolution Audio Player,High Res Audio Player |
| Control Type | Volume Control |
| Cable Feature | Detachable |
| Item Weight | 91 g |
| Water Resistance Level | Water Resistant |
| Net Quantity | 1.0 Count |
| Style | Studio Reference |
| Control Method | Touch |
| Number of Items | 1 |
| Controller Type | Multimedia Controls |
| Audio Driver Type | Balanced Armature Driver |
| Carrying Case Material | Nylon |
| Carrying Case Color | Black |
| Earpiece Shape | Bud |
| Series number | 4 |
| Hardware Interface | 3.5mm Audio |
| UPC | 846430002012 |
| Input Device Interface | 3.5 mm |
| Generation | 2 UK |
| Supports Bluetooth Technology | No |
| Special Feature | in-ear |
| Global Trade Identification Number | 00846430002012 |
| Manufacturer | Etymotic Research, Inc. |
| Model | ER4SR |
| Model Year | 2016 |
| Product Dimensions | 81.28 x 0.64 x 0.64 cm; 90.72 g |
| Item model number | ER4SR |
| Special Features | in-ear |
| Aspect Ratio | Unknown |
| Batteries Included | No |
| Batteries Required | No |
| Cable feature | Detachable |
| Form Factor | In ear |
| Does it contain liquid? | No |
| Has Auto Focus | No |
| Includes Rechargeable Battery | No |
| Includes AC Adapter | No |
| Programmable Buttons | No |
| Country of Origin | China |
| Item Weight | 90.7 g |
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