This VHF has a Bluetooth function for mobile phone interface which can then be stored in a safe place. The product can be used as a standard VHF, or as a telephone using the Bluetooth connections.Technical data: Waterproof to IPx7 - floating - 6-watt power - All international channels - "Rewind" function to listen to the last calls - Exclusive BURP function to drain excess water from the speaker grill, Signal Meter - Unlimited channel programming - Tri-Watch function for channel 16 + 2 selected channels - Jack for external microphone / speaker - Scanner for memorised channels - Key Lock to prevent accidental use - Background noise suppression - High visibility display.Complete with 1000 mAh LION batteries + 220 V charger with desktop + 12 V (cigarette lighter) + spare antenna + belt clips.