HX40 Handheld 6W Ultra Compact Marine VHF Transceiver with FM BandFeatures:Floating (When fitted into the optional flotation case SHC-29*)IPX7 Submersible (1M for 30 minutes)Ultra Compact case design: 2.05W x 3.74H x 1.3D6W transmit power output (Selectable 6/2.5/1W)600mW Loud Audio OutputPreset key used to recall up to 10 favorite channelsEasy to Operate Menu SystemScanning operation and Multi-Watch (Dual Watch and Triple Watch)CH16/S Quick Access (S: Sub-channel)Built-in Lithium Polymer Battery Pack (7.4V, 1850mAh)NOAA Weather Channels with Weather AlertFM Broadcast Radio Receiver3-Year Waterproof Warranty*SHC-29 Floatation Case is an accessory for the HX40