Motorola On-Site RDV5100 10-Channel VHF Water-Resistant Two-Way Business Radio Two-way radio with up to 5W power (2W low power setting); 10 channels, pre-programmed to 10 channel/code combinations 38 analog and 83 digital interference eliminator codes; 22 hours battery life.Channel Annunciation Voice support for channel announcement Three voice-inversion scramble settings to minimize eavesdropping; three audible call tones Designed to IP-55 and MIL-SPEC specifications; channel scan with selectable scan list VOX with three sensitivity levels; tri-color LED with transmit, receive, and low battery indication; two-pin accessory plug