?The main function

1. calls 62 groups， 16 groups outgoing.

Level 2.5 adjustable brightness， battery-free function

3. King sound handset earpiece volume three adjustable speakerphone.

4. R key function (with fast transfer switch)， EXT.

5. The alarm function. VIP anti-delete function， wall function (dual-wall tables)

6.8 Group-touch memory function (PTT function) commonly get a key number

Color: black， white