Retevis RT8 Ham Amateur Radio IP67 Waterproof DMR Digital Radio DTMF VHF 1000 CH Handheld Transceiver with 2 Antennas IP67 waterproof means it can still work even if you put it under 1 meter water for 30 minute Solid build and dust-proof body with crisp audio;2200mAh battery capacity support standby 150 hours Digital mode/analog mode switchable;compatible with Mototrbo Tier 1&2 including radios manufactured by Motorola;Hytera; Kenwood and Vertex Standard Support standard encryption;text messages;remote kill / stun/ activate;single/ group/ all call/ emergency call in digital mode;2 antenna high gain antenna and common antenna increasing the range Support manually programming and PC programming (easily by loading code plug) and software upgrading for new functions life-time-free;provide free software;1 year warranty and 30 days no reason to return