1， universal remote control and Headset (PSP3000 and PSP2000)

2， PSP microphone function (network chat， voice playing， recording)

3， by wire (Headset any change to the built-in microphone， microphone used as usual)

4， the ear in the bass Headset (105 Dolby sensitivity)

5， strengthen the key and interface (500000 key life， 1000 500 plug life)