Quick Reference Guide

4
1. Product Layout
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HP
36X
HP31X
HP28X HP21X
HP36X/HP31X/HP28X HP21X
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23
24
25
26
27
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25
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No. Part Name No. Part Name No. Part Name
1 Channel Selector Knob 10 Microphone 19 P2 Key*
2 Push-to-Talk (PTT) Key 11 LCD Display 20 P3 Key*
3 Volume UP Key 12 OK/Menu Key 21 Keypad
4 Volume Down Key 13 Up Key 22 Accessory Connector
5 Side Key 3 (SK3)* 14 Back Key 23 USB Type-C Port
6

HP36X/HP28X: Top Key (TK)*

HP31X/HP21X: On-Off Key
15 On-Off Key 24 Strap Hole
7 Antenna 16 Down Key 25 Belt Clip
8 LED Indicator 17 Contact Key 26 Battery