| New , Intuitive User Interface | The new menu system provides easy and intuitive use. At the bottom of the LCD screen, you can see the features you can select with the left and right arrow keys of your radio. |
| Active Noise Cancelling | Hear more clearly and be heard! With its built-in two-way active noise canceling feature, the IC-M91D reduces background noise by up to 90%, sending your voice more clearly to the other side and clearing out the incoming sound and transmitting it to you. |
| Built-in GPS | The high-sensitivity built-in GPS feature shows your current position and can be used in addition to DSC calls. With the MOB (Man overboard) feature, the coordinate information of the emergency situation can be stored. |
| DSC Feature on Your Handheld Radio | IC -M91D has DSC feature. DSC features that can be used are distress, individual, group, all ships, emergency, security and DSC test calls. |
| Warning While Swimming Light | When you drop the IC-M91D into water, it floats. It also flashes the LCD screen and gives a “beep” alarm so you can easily find it. |
| 700mW Internal Speaker | High The IC-M91D’s built-in speaker has a power of 700mW so you can easily hear incoming calls even in noisy environments. |
| Optional Waterproof Speaker-Microphone (HM-167) | |
| 50 Marked Point Memory | |
| AquaQuake™ Water Drainage Feature | |
| Dual/Tri-Watch Feature | |
| 4 Stage Battery Level Indicator | |
| Favorite Channel Feature | |
