This tri-watt handheld radio will give you a longer battery life. Just switch the unit down to 1 watt when making short line-of-sight calls, or crank it up to 2.5 or 5 watts depending on your range needs. Meets JIS7 waterproof specifications. Covers all US, international and Canadian marine channels. Dual and Triple Watch modes and WX channels. Includes LiON battery pack, clip-on DC charger and belt clip.