1)Driver unit: 15.4mm
2)speaker: 9u
3)Impedance: 32 Ω 
4)Sensitivity: 108dB
5)Frequency response:20HZ---20kHZ
6)Cable length: 120cm
7)Plug: 3.5mm stereo plug

This a very very cheapest earphone model , even though it is so cheap , but it also have a good sound quality , if possible we would like to provide samples for your test & evaluation .

It complied to EU standard , all the raw material are complied to CE & RoHS , we are glad to provide SGS report for each part of the earphone for you .

it is suitable for big project promotional gift , or one kind of the additional gifts for your saling goods ...

It will be very suitable & economical for mass-buying & wholesaler ...