The A16 is the ideal flight companion for the student pilot. This radio practically pays for itself by saving pilots both engine hours and fuel during preflight communications with the tower. Users appreciate the A16's compact, waterproof design for one hand operation for working on the flight line, using it for back up in any aircraft, or for use by ground crew. Its 2400mAh Li-ion battery lasts over 17 hours and the radio includes a nice sit in rapid charger. Air band radios are usually operated in high noise environments, so it is essential for the pilot's radio to provide loud audio. The A16 internal speaker delivers a loud 1500mW audio output with clear sound to cut through cabin or tarmac noise.