Range 150 mt (500 ft) any drection (doesn't work underwater); Complies with different countries rules ( FSR for USa, PMR446 for EU); 4 different channel for separate conversations; Any number of Snorkie Talkie can comunicate with each other on the same channel; Rated IP68 (waterproof 3 mt/10 ft); Battery level indication; 8 hours operating time; 1200 hours stand by battery life; Adjustable volume; Mask NOT Included