Functions
1.Programmable
2.DAF (up to 220ms) / FAF
3.Looks like an MP3 player
4.Second memory
5.External volume control
6.Upgradeable software
7.Mute button
8.16-band frequency shaping
9.Rechargeable Lithium battery
10.Intelligent noise attenuation strategy(INAS)
11.Effective voice activation technology(EVAT)
