ER4XR-BT Wireless In-Ear Headphones
Product Description
The ER4XR-BT Wireless In-Ear Headphones from Etymotic Research are made to provide you with reference-quality audio fidelity. They utilize balanced-armature, precision-matched, and custom-tuned drivers. These in-ear monitors also feature a high 122 dB SPL sensitivity, clear midrange and highs, natural bass, and the convenience of a wireless design. To ensure audio quality during wireless transmission, Etymotic equipped these headphones with a dedicated AKM AK4331 DAC and headphone amplifier. They also support aptX, aptX HD, and aptX LL for 24-bit/48 kHz lossless playback.
To deliver as pure an audio experience as possible, Etymotic crafts their earbuds for significant passive noise isolation up to 42 dB. Such noise isolation is ideal for both music and mobile calls. Pair the ER4XR-BT headphones with your smartphone and you can use the built-in mic pod for hands-free calls. The microphone has a 3-button control for calls and audio playback. They last for over 8 hours on a single charge, feature dual shirt clips for keeping them secure during use, and durable metal earpieces with an anodized finish.
To deliver as pure an audio experience as possible, Etymotic crafts their earbuds for significant passive noise isolation up to 42 dB. Such noise isolation is ideal for both music and mobile calls. Pair the ER4XR-BT headphones with your smartphone and you can use the built-in mic pod for hands-free calls. The microphone has a 3-button control for calls and audio playback. They last for over 8 hours on a single charge, feature dual shirt clips for keeping them secure during use, and durable metal earpieces with an anodized finish.
Item Type | |
Number of Included Headphones/Receivers | |
Number of Included Transmitters | |
Number of Included Headsets | |
Number of Included Transceivers | |
Headphone | |
Earpiece Design | In-Ear (Intra-Aural) |
Earpiece Swivel | |
Earpiece Connection / Wearing Style | Not Specified by Manufacturer |
Foldable | Not Specified by Manufacturer |
Number of Earpieces | |
Sound Field | |
Earpad Size | |
Driver Type | Balanced Armature |
Number of Drivers | 1, per Earpiece |
Driver Size | |
Diaphragm | |
Magnet Type | |
Voice Coil | |
Impedance | 45 Ohms (Passive) |
Active Noise Cancellation | No |
Controls/Microphone Location | Controls: Cable Microphone: Cable |
Full Remote OS Support | |
Sensors | |
Contact Pressure | |
Performance | |
Frequency Response | |
Resonant Frequency | |
Sensitivity | 98 dB at 1 kHz |
Matching Tolerance | |
Maximum Sound Pressure Level (SPL) | 122 dB |
Maximum Power Handling | |
Functional Bias Voltage | |
Electrostatic Capacitance | |
Output Power | |
Volume Limiting | |
Noise Attenuation | Up to 42 dB (Passive) |
Total Harmonic Distortion (THD) | |
SNR | |
CMRR | |
Channel Separation | |
Storage Capacity | |
Number of Mics | |
Beamforming Support | |
Type | |
Diaphragm Size | |
Mic Boom Location | |
Pickup Pattern | |
Noise Canceling | |
Frequency Response | |
Operating Voltage | |
Sensitivity | |
Maximum SPL | |
Impedance | |
SNR | |
Distortion | |
Equivalent Noise Level | |
Wireless Connectivity | |
Wireless Transmission | |
Number of RF Channels | |
RF Bandwidth | |
Max Systems per Setup | |
Wireless Modulation | |
DECT Standard | |
Duplex Mode | |
RF Channel Access Method | |
Latency | |
Speech Encoding | |
Transmission Speed | |
Approximate RF Sensitivity | |
Supported Audio Codecs | aptX, aptX HD, aptX LL |
Bluetooth Profiles | |
Bluetooth | 5.0 |
Bluetooth Power Class | |
Wireless Range | |
Frequency | |
Transmitter Power | |
Multipoint Support | |
Maximum Paired Devices | |
NFC | No |
Wireless Chipset | |
True Wireless Pairing Method | |
Transmitter Host Connection | |
Encryption | |
Wired Connectivity | |
Audio Connector to Source | 1 x 1/8" / 3.5 mm |
Connector Plating | |
Adapter (Included) | |
Cable Design | |
Audio Connector to Earpiece | 2 x MMCX Male |
Cable Length | |
Cable Length | |
Cable Color | |
Cable Conductor Material | |
Battery | |
Battery Type | |
Battery Type | |
Battery Chemistry | |
Battery Chemistry | |
Capacity (mAh) | |
Runtime | 8 Hours (BT) |
Runtime | |
Quick Charging Times | |
Recharge Time | |
DC Input Power | |
Wireless Charging | |
Charging Port | Not Specified by Manufacturer |
Charging Cable Length | |
Number of Channels | |
Users per System | |
I/O Connectors | |
Antenna | |
Audio Decoding | |
Number of Charging Ports | |
AC/DC Power Adapter | |
AC Input Power | |
Power Consumption | |
Additional Runtime | |
Battery Chemistry | |
Capacity | |
Charging Time | |
Charging Interface | |
Platform Support | |
OS Compatibility | |
Required Hardware | |
Internet Connection | |
Charging Temperature | |
Operating Temperature | |
Storage Temperature | |
Operating Humidity | |
Storage Humidity | |
Certifications | |
Physical | |
Color | |
Water Resistance | |
IP Rating | |
LED Indicator | |
Material of Construction | Metal |
Dimensions | |
Weight | |
Warranty Length | Limited 2-Year Warranty |