DESIGN & DETAILS: T51VP3 two-way radio ClearBand™ Technology for clear transmission, reception, and sound Water resistant construction 38 privacy codes, up to 836 channel options to help block other conversations Charges via USB Auto squelch Roger beep Keypad lock Monitor mode Low battery indicator Auto battery save Call alert Keystroke tones Battery meter Headphone jack Drop-in charger capable Battery life extender Micro USB charge jack Number of channels: 22 channel Range: Up to 28 miles Model: T51VP3