Klein Electronics Blackbox-PocketPlus Compact 2-Way Radio, 16 Channels, 1.5 Watts Output, UHF Frequency 400-470 Mhz, Only 0.5 Thin, Includes Compander, PC Programmable, Voice Prompt, VOX Function Key Features - 16 Channels - 1.5 Watts Output - UHF Frequency 400-470 Mhz - Only 0.5 Thin - Includes Compander - PC Programmable - Voice Prompt - VOX Function - Scan Function - Scramble Function - Time-out Timer (TOT) - Battery Saver - Low Battery Warning - TX End Tone - Busy Channel Lock Out - Squelch Level Adjust - CTCSS/DCS Decode and Encode - Wide/Narrow Band 25KHz/12.5KHz - Takes a K1 (KENWOOD style) connector for earpieces