We haven't had a chance to fully test this product yet, but we've assembled this helpful overview of relevant information on it.
iFrogz Caliber Universe
iFrogz’s gaming Caliber Universe headphones are designed for Mac, PC, XBOX, PS3, 360. The Caliber Universe can get up to 10 hours of gaming, while also featuring a built-in Lithium rechargeable battery. Additional features include 40 mm drivers, an impedance of 32 Ohms, and real-time voice overlay, enabling users to game with friends via chat.
40 mm drivers
Impedance: 32 Ohms
Sensitivity: 102 dB
Frequency Response: 20 Hz – 18 kHz
Built-in Lithium battery
Real-time voice overlay
Wireless, designed for PC, Mac, XBox, 360, PS3