Powerful 1-watt transmitter carries your signal up to 200,000 sq ft (10 floors) on 56 business-exclusive frequencies with virtually no interference. Features 4 channels, 121 Interference Eliminator Codes, and keypad lock. Includes rechargeable long-life lithium-ion battery, charger, and carry holster. 2"W x 4"H x 1" thick; 5 oz. Sold individually and in a Pack of 6 with 6-unit, 8-hour charging dock. FCC operator's license required.