The frequency response differs (20 Hz-20,000 Hz vs 20 Hz - 20000 Hz), which can influence how well the headphones reproduce lows, mids, and highs. Impedance levels vary (24 Ohms vs 32 ohm), which can affect compatibility and audio output when used with different devices. The driver size differs between the two (32 mm vs 40 mm), which can influence sound depth, bass response, and overall audio clarity. Philips SHB4000-00 and Zebronics Zeb-Duke 2 are premium wireless headphones designed to deliver high-quality sound along with advanced features like noise cancellation and long battery life. There is a noticeable difference in weight (71 g vs 135 Gm), which may affect comfort during extended use. Battery life varies between the two (Talktime : 9 Hrs, Standby Time : 200 Hrs, Music Time : 9 Hrs vs 32 Hours), which affects how long you can use them on a single charge. Philips SHB4000-00 uses Bluetooth 3.0+EDR while Zebronics Zeb-Duke 2 supports Bluetooth 5.0+EDR, which can impact connectivity stability and efficiency. In general, both options are suitable for everyday use including music, calls, travel, and work-from-home scenarios. Philips SHB4000-00 and Zebronics Zeb-Duke 2 offer different noise cancellation capabilities (Yes vs NA), 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.