Long Range Walkie Talkie Set with VOX Function (110V, 3-5 km Range, Charges Docks) Type: Two-way Radio Frequency Band: VHF Channels: 200 Channels Range: Up to 2-Mile VOX: Yes Power Supply: Charging Station Power Supply: 110V Power: Rechargeable Ni Battery Package Contents: Talk Time: About 3 hours of non-stop use