• Handheld marine radio; whether it's engine noise on a boat; roaring wind or a cresting wave; the portable marine band radio effectively removes background noise and transmits the other party’s voices clearly; ideal for noisy situations such as jet skis; sailing races and surf kayaks
• HI/MI/LO switch; this marine two way radio provides ability to customize your conversations when there are days you spend on the water further from shore; select between HI; MI or LO for long-range; medium-range and short-range communication
• AI intelligent noise cancelling mic for crystal clear conversations; Retevis RM21 as a portable handheld marine radio can recognize human voice and noise through digital signal processing technology;and reduces the noise to about 20 dB
• IP67 waterproof & floating & fallen overboard detection; if the radio marine falls into water; floating function supports floating on the water surface; when the detection button and the charging contact are in the water at the same time; the back of the radio will emit a red light to indicate
• Long standby time; rechargeable marine radio comes with a high-capacity 1800mAh Lithium-ion battery; 10 hours of continuous use and up to 60 hours of standby time in battery saving mode
• Backlit LCD display; there are 0-7 screen background colour options of Retevis RM21 boat radios; you can freely choose the appropriate background color according to the light intensity or the use environment for easier reading and use
• 10 NOAA weather channels; helps you get the latest weather and a alarm of severe weather; always help be prepared for the unexpected