Hardware features: · 16 position continuous rotary knob · 2 side buttons · 4 button Menu Navigation keypad · 8-Character Alphanumeric Display Operator friendly controls and features include: · Large Rotary Channel Selector · Battery Latch Lock · Rotary On/OFF and Volume Control · Large Textured PTT · Tricolor LED · spring Action Belt Clip · Accessory Connector for convenient access · Rugged, Die-Cast Chassis · Four Programmable Option Buttons support your choice of up to eight product features