Zebronics Zeb-Buds 30C and Aiwa ESTM-51 are well-known options in the wireless headphone segment, offering a balance of audio quality, battery performance, and smart features. Both models provide a wide frequency range, delivering a balanced audio experience across different types of content. Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. Overall, both headphones are feature-rich and cater to users looking for a combination of sound quality, comfort, and wireless convenience. The driver size differs between the two (14.2 mm vs 10 mm), which can influence sound depth, bass response, and overall audio clarity. Both headphones offer solid battery performance, making them suitable for long listening sessions and travel. Both models feature noise cancellation, helping reduce background noise for a more immersive listening experience. Impedance levels vary (32 ohm vs NA), which can affect compatibility and audio output when used with different devices. There is a noticeable difference in weight (11.8 Gm vs 15 Gm), which may affect comfort during extended use.

Verdict: Choosing between Zebronics Zeb-Buds 30C and Aiwa ESTM-51 depends on whether you value better sound, longer battery life, or enhanced features.