M73 PLUS Handheld VHF Marine Radio with Active Noise Cancelling Voice Recording - 6W The M73?s ergonomic design fits easily in the user?s hand and is a rugged, durable radio. The large screen and high-intensity LCD offer bright, easy-to-read characters. Yacht customers benefit from the optional VOX headset and adapter option that allows someone handling dock lines to use both hands, while docking the boat, simultaneously communicating with the captain. Features: Output Power: 6W Battery Life: 2000mAh Li-ion battery, up to 16 hours Waterproof Rating: IPX8 Loud Audio - The M73 uses a BTL (bridge-tied load) amplifier that doubles the audio output. Its internal speaker delivers a loud 700mW audio output with clear sound. M73 PLUS Additional Features: Active noise canceling to reduce background noise to hear conversations better Bass boost function provides a rich bass sound for both transmit and receive signals Last call voice recording automatically saves the last incoming call for one minute. You can also start recording manually AquaQuake? water draining function Dual/Tri-Watch function for monitoring Channel 16 and/or call channel 4 level battery indicator Favorite channel and tag scan functions Auto power save function