Sony MDR-EX750NA-B vs Sennheiser IE 4 – Detailed Specs Comparison (2026)

- L-shaped gold-plated 4-pole mini plug - Y-shape Tangle Free cable - High-Resolution Audio capability - Digital Noise Cancelling utilizing Dual Noise Sensors reduce ambient noise - 9mm high-sensitivity drivers reproduce up to 40kHz - Built-in Li-ion batt for 16 hours non-stop music all day - Hands-free calls with in-line remote and microphone - Style statement with the distinctive single shape design Rechargeable Battery Details - Battery Charging : DC3.7V : Built-in litium-ion rechargeable battery; DC 5 V (When charged using USB) - Battery Life : Approx. 16 Hours (Fully charged); Approx. 10 Hours of continuous communication after 1 Hour charge - Charging Time : Approx. 2.5 Hours (Full charge) - Passive Operation : Yes (Use as passive headphones even when power supply is OFF) Microphone Features - Unit/Type : Electret Condenser - Directivity : Omni directional - Frequency Range : 20 Hzâ€“20,000 Hz - Open circuit voltage level : â€“40 dB (0 dB = 1 V/Pa)

- Universal fit due to exchangeable ear sleeves, available in three different sizes - Natural sound reproduction and dynamic - Extremely robust, even at high sound pressure levels - Outstanding bass response - Rugged cable

Sony MDR-EX750NA-B and Sennheiser IE 4 are well-known options in the wireless headphone segment, offering a balance of audio quality, battery performance, and smart features. There is a noticeable difference in weight (5 g vs NA), which may affect comfort during extended use. The driver size differs between the two (9 mm vs NA), which can influence sound depth, bass response, and overall audio clarity. Sony MDR-EX750NA-B and Sennheiser IE 4 offer different noise cancellation capabilities (Yes vs NA), which can impact how effectively they block external noise. Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. The frequency response differs (5 Hz - 40,000 Hz vs 40 Hz - 20000 Hz), which can influence how well the headphones reproduce lows, mids, and highs. Both headphones offer solid battery performance, making them suitable for long listening sessions and travel. In general, both options are suitable for everyday use including music, calls, travel, and work-from-home scenarios.

Verdict: Both models are competitive, and your decision should be based on your usage needs and preferred features.

Top Differences

Noise Cancelling: Yes vs NA
Driver Size: 9 mm vs NA
Weight: 5 g vs NA

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Top Differences