Comfortable & Durable
The headband can be adjusted to fit the head, balancing the wearing pressure, comfortable to wear, light, flexible, b and durable, suitable for professional game players.
Crystal Clear Communication
The flexible and bendable microphone utilizes a cardioid pattern that records sound from an area that focuses on your mouth. This helps to capture your voice with clarity while suppressing background noise from the back and sides. 
40mm Driver Unit
Featuring custom-tuned 40mm drivers, the headset produces clear and balanced sound from thundering explosions in all-out wars to subtle footsteps in stealthy covert operations.
Cross-platform Compatibility
Compatible with PC, Mac, Xbox One*, PS4, Nintendo Switch and mobile devices with a 3.5mm audio jack.

Specification:
Brand: Razer
Model: Kraken X-Mercury
Headphone
Frequency response: 12Hz–28kHz
Impedance: 32Ω@(1 kHz)
Sensitivity(at 1kHz): 109dB
Drivers: 40mm, with Neodymium Magnets
Connection type: 3.5mm
Cable length: 1.3m
Approx. weight: 230g/8.1oz
Microphone
Frequency response: 100Hz–10kHz
Signal-to-noise Ratio: >60dB
Sensitivity(at 1kHz): -45±3dB
Pick-up pattern: Unidirectional ECM/Cardioid pickup

Packing list:
1 * Headset
1 * User manual