Motorola On-Site RDU4100 10-Channel UHF Water-Resistant Two-Way Business Radio
http://www.amazon.com/gp/product/B000Y357Y2?tag=sukses2015-20
Two-way radio with up to four watts power two-watt low power setting pre-programmed to 10 channelcode combinations two programmable buttons
38 analog and 83 digital interference eliminator codes 22 hours battery life
Designed to IP-55 and MIL-SPEC specifications channel scan with selectable scan list
Three voice-inversion scramble settings to minimize eavesdropping three audible call tones
VOX with three sensitivity levels tri-color LED with transmit receive and low battery indication two-pin accessory plug
Up to 4W Power 2W low power setting