... DSP 4.OEM:Accepted Professional handheld radio, two way radio, walkie talkie, 2 way radio, interphone, walkie-talkie radio Quanzhou Kingpo Electronic Co., LtdProduct name ... silence15. Squelch level 0-9 adjustable16. Channel Scan17. Wide/ Narrow Band Selectable Application Fields:Dining Hall, Restaurant, KTV, Construction site, Property ...