The Icom M73 radios feature six watts of high transmit power and waterproof IPX8 submersible construction. It features loud 700mW audio output and approximately 18 hours of operating time. With a new interface design with large directional buttons, you gain fast access to menu items and radio functions. Compact, slim and ergonomic design allows easy one-handed operation. Rigorously tested for durability, they meet MIL-STD 810 specifications.  - 700mW Loud Audio, 6W RF Output Power- IPX8 Advanced Waterproofing- AquaQuake water draining function- Dual/Tri-Watch function for monitoring Channel 16 and/or call channel- Favourite channel and tag scan functions