*Frequency Range:20Hz-20KHz
*Max Power Input:10mw
*Rated Power:20mw
*Speaker:40mw
*Impedance:32 Ohm +/-15%
*Sensitivity:103dB+/-5dB at 1KHz
*Plug type:3.5mm
*Length of cable:1.5mm
1. headband: steel/PU/PVC/ABS/PP
2. keeper: steel
3. headphone/earphone shell: ABS, wood , metal
4. surface solution: normal/UV coating/rubber paint/electrofacing
5.earmuff: sponge, cloth, leather, silicone
6. speaker:f9,f10,f30, f40,f50
7. cable: PVC/TPE/fabric/aluminum Wire
8. plug: 6.35mm,3.5mm,2.5mm,USB plug
9. logo printing: silk printing, laser etching,water transfer printing,heat tranfer printing,color printing