Sennheiser HD 800 and Beyerdynamic DT 1770 PRO MKII are well-known options in the wireless headphone segment, offering a balance of audio quality, battery performance, and smart features. Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. The driver size differs between the two (NA vs 45 mm), which can influence sound depth, bass response, and overall audio clarity. There is a noticeable difference in weight (Approx 330 g vs 377 GM), which may affect comfort during extended use. Both models feature noise cancellation, helping reduce background noise for a more immersive listening experience. Both headphones offer solid battery performance, making them suitable for long listening sessions and travel. The frequency response differs (6 Hz - 51000 Hz vs 5Hz - 40KHz), which can influence how well the headphones reproduce lows, mids, and highs. Overall, both headphones are feature-rich and cater to users looking for a combination of sound quality, comfort, and wireless convenience. Impedance levels vary (300 Ohms vs 30 ohm), which can affect compatibility and audio output when used with different devices.

Verdict: Choosing between Sennheiser HD 800 and Beyerdynamic DT 1770 PRO MKII depends on whether you value better sound, longer battery life, or enhanced features.