JBL J56BT and Nokia P3802A offer different noise cancellation capabilities (No vs Hybrid Active), which can impact how effectively they block external noise. Impedance levels vary (NA vs 32 ohm), which can affect compatibility and audio output when used with different devices. Overall, both headphones are feature-rich and cater to users looking for a combination of sound quality, comfort, and wireless convenience. Battery life varies between the two (16 hrs vs 32 Hours), which affects how long you can use them on a single charge. JBL J56BT uses Bluetooth 3.0 while Nokia P3802A supports Bluetooth 5.1, which can impact connectivity stability and efficiency. JBL J56BT and Nokia P3802A 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 - 20,000 Hz vs 20 Hz to 20000 kHz), which can influence how well the headphones reproduce lows, mids, and highs. The driver size differs between the two (40 mm vs 12.5 mm), which can influence sound depth, bass response, and overall audio clarity. There is a noticeable difference in weight (NA vs 57 gm), which may affect comfort during extended use.

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