The driver size differs between the two (40 mm vs NA), which can influence sound depth, bass response, and overall audio clarity. Impedance levels vary (32 ohm vs 18 ohm), which can affect compatibility and audio output when used with different devices. Both headphones offer solid battery performance, making them suitable for long listening sessions and travel. Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. JBL E35 and Sennheiser HD 300 are premium wireless headphones designed to deliver high-quality sound along with advanced features like noise cancellation and long battery life. The frequency response differs (20 Hz - 20000 kHz vs 18 Hz - 20000 Hz), which can influence how well the headphones reproduce lows, mids, and highs. From a usability standpoint, both models provide a reliable and premium headphone experience. There is a noticeable difference in weight (168 gm vs 217 Gm), which may affect comfort during extended use. JBL E35 and Sennheiser HD 300 offer different noise cancellation capabilities (NA vs AMBIENT), which can impact how effectively they block external noise.

Verdict: Both headphones offer strong performance, and the right choice depends on your priorities such as battery life, comfort, and noise cancellation.