Motorola RDU4160 UHF Radio

Each RDU4160d 4-Watt Walkie Talkie measures an extremely compact 5.1" (H) X 2.5" (W) X 1.3" (D) and weighs only 9.9 ounces (with battery).  The radios also feature keypad lock, 3 audible call tones, channel scan with selectable scan list, signal strength indicator, 5 programmable buttons, 3 voice inversion scramble settings to minimize eavesdropping, VOX capable with optional headset, LCD display and battery gauge.  

With user-selectable 2 or 4 Watt power setting these UHF frequency radios can be set to maximize battery life or range.  Using a 2400 mAH battery provides approximately 18.5 hours of talk-time.  At the 4 Watt setting the radio has an effective range in metal and concrete structures of approximately 350,000 square feet, or 30 floors.