Key Differences

Impedance levels vary (16 ohms vs NA), which can affect compatibility and audio output when used with different devices. Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. Both headphones offer solid battery performance, making them suitable for long listening sessions and travel. From a usability standpoint, both models provide a reliable and premium headphone experience. Sony MDR-EX15LP and Aiwa ESTM-51 are premium wireless headphones designed to deliver high-quality sound along with advanced features like noise cancellation and long battery life. The driver size differs between the two (9 mm vs 10 mm), which can influence sound depth, bass response, and overall audio clarity. The frequency response differs (8 - 22,000 Hz vs 20 Hz - 20000 Hz), which can influence how well the headphones reproduce lows, mids, and highs. Sony MDR-EX15LP and Aiwa ESTM-51 offer different noise cancellation capabilities (No vs NA), which can impact how effectively they block external noise. There is a noticeable difference in weight (3 g (without cable) vs 15 Gm), which may affect comfort during extended use.

Verdict: Choosing between Sony MDR-EX15LP and Aiwa ESTM-51 depends on whether you value better sound, longer battery life, or enhanced features.