Razer Imperator 4G:
TECH SPECS
6400dpi 4G Dual Sensor System
Rubberized contoured thumb grip for added control
Ergonomic right-handed design
Adjustable side buttons
Razer Synapse Onboard Memory
Razer Synapse 2.0 enabled
Up to 200 inches per second* /50g acceleration
Seven independently programmable Hyperesponse buttons
On-the-Fly Sensitivity adjustment
Zero-acoustic Ultraslick mouse feet
Approximate Size : 123 mm / 4.85 (Length) x 70 mm / 2.76 (Width) x 43 mm / 1.69 (Height)
Approximate Weight: 139 g / 0.31 lbs

Razer Goliathus:
TECH SPECS
Pixel-precise targeting and tracking
Optimized for all mouse sensitivities and sensors
Highly portable cloth-based design
Anti-fraying stitched frame
Anti-slip rubber base
Razer Blackwidow T2
TECH SPECS
Razer Mechanical Switches with 50g actuation force
60 million keystroke life span
10 key roll-over anti-ghosting
Fully programmable keys with on-the-fly macro recording
5 additional dedicated macro keys
Gaming mode option
Audio-out/mic-in jacks
USB pass-through
1000Hz Ultrapolling
Razer Synapse 2.0 enabled
Braided fiber cable
Approximate size: 475mm/18.72 (Width) x 171mm/6.74 (Height) x 20mm/0.79 (Depth)
Approximate weight: 1500g/3.31lbs
Razer Kraken Pro:
TECH SPECS
Headphones
Frequency Response: 20 20,000 Hz
Impedance: 32 at 1kHz
Sensitivity (@1kHz, 1V/Pa): 110 4dB at 1 kHz Max
Input Power: 50 mW
Drivers: 40 mm, with Neodymium Magnets
Inner Ear Cup Diameter: 50 mm / 1.97
Cable Length: 1.3 m / 4.27 ft plus 2m / 6.6 ft splitter adapter
Approximate Weight: 293 g / 0.65 lbs
Connector: Analog 3.5 mm combined jack (headphone and mic)
Microphone
Frequency Response: 100 10,000 Hz
Signal-to-Noise Ratio: 52 dB
Sensitivity (@1kHz, 1V/