President Electronics JOHNNY III USA CB Radio AM Transceiver, 40 Channels AM, Channel Rotary Switch, Weather Alert, Volume Adjustment and ON/OFF, Multi-functions LCD Display, Key Features, 40 channels AM, Channel rotary switch, Weather Alert, Volume adjustment and ON/OFF, Manual squelch and ASC (Automatic Squelch Control), Multi-functions LCD display, S-meter, Vox function (Hands free), ANL filter and HI-CUT, RF Gain, Scan, Priority channel memory, F function key, Beep Function, Roger Beep, Key locking, Front microphone plug, External loudspeaker jack. Specifications: Number of channels: 40. Channel selector: rotary. Number of weather channels: 7. Frequency ranges: 26.965 MHz to 27.405 MHz. Weather channels: 162.400 MHz to 162.550 MHz. Antenna impedance: 50 ohms. Weather alert: Yes. Volume: Volume adjustment and ON/OFF. Squelch: Manual squelch. ASC: Yes. Display: LCD multifunction. S-meter: Digital. Public address: Yes. Vox: Yes. Filter ANL: Yes. Filter HI-CUT: Yes. RF-Gain: Yes. Scan: Yes. Memories: 1. F/Menu function key: Yes. Beep Function: Yes. Roger beep: Yes. Key locking: Yes. Microphone plug: front (6 pins). External Vox microphone jack: Yes. External loudspeaker jack: Yes. Power Supply: 13.8 V / 27.6 V. Size (W x D x H): 4.92" x 1.77" x 5.91" / 125 mm x 45 mm x 150 mm. Weight: ~ 1.54 lbs. / ~ 0.7 kg.