1) Driver unit:40mm neodymium driver unit
2) Frequency Response:10Hz—21000Hz
3) Impedance:30Ω(when on) 36Ω(when off)
4) Sensitivity:113dB /mW(when on) 114dB /mW(when off)
5) Max input power:50 hours(using alkaline batteries)
6) Length of the cable:1.5m
7) Plug:3.5mm
8) Attachment: Receive bag*1 Double joint adapter*1
9) Logo: Customized
10) Color: Customized
11) Style: Customized