Long Range Portable Transceiver radio NC-580/680 Product Description: Item No: NC-580/680Customize: OEM/ODM availableFrequency Range: 136-174MHZ,Website:http://www ... .com, 400-480MHZ, 245MHZ, etcChannel Quantity: 199Power Output: 5 / 4WTalking range: 4-8 KMCapacity of battery: 1300 mAh (Optional: 1700mAh)Measurement ...