Specification: 
1. Loudhailer diameter: 40mm 
2. Frequency range: 20-20.000Hz 
3. Sensitivity: 115+/-3dB at 1 khz 
4. Impedance: 32 Ohm at 1khz 
5. Max Input power: 20mW 
6. Mic Sensitivity: -40dB +/- 3 dB 
7. Mic Frequency Range:50- 10KHz 
8. Mic Impedance: smaller than 2.2K ohm at 1khz 
9. Headset cable length:Approx.1.5 m 
10. Input Plug: 3.5MM interface 
11. Weight: about 330g 

Note: 
1. If you use it to the old obox one， it needs a Microsoft Adapter， this Adapter is not included. 
2.We offer a very competitive price for the high quality SA-935 gaming headphones. All items are all packaged well with best protection. 

Package : 
1x SADES SA935 gaming headset 
1 x User Manual 
1* Two in One 3.5mm 4 Pin Jack Cable