Dong 3.5mm Plug Wired Receiver for Vintage Phone Radiation Protection Receiver Suitable for Phone earpiece 4 5 6 7 Classic Earphone Microphone (Blue)

Noise Reduction Syetem, Improved Call comfort.
Allows access to phone functions when making calls.
Turns your tablet computer into a telephone via skype or VOIP applications.
Pick up / hang up button,
Supplied with a 3.5mm plug.
Luxurious soft touch paint treatment.
High quality speaker and microphone.
Compatible with all devices.
Note:the volume button is special used for iphone,some Android phone(must high smartphone) can answer the phone ,but can not use volume button,so please understand!