Lightweight Design: Weighing in at only 240 g (8.5 oz), G335 is smaller and lighter than the G733, features a suspension headband to help distribute weight and is adjustable for a customised fit. Frequency response: 20 Hz-20 KHz. Impedance: 36 Ohms Sensitivity: 87.5 dB SPL/mW;All-day Comfort: Soft m..