Floureon M-880 22 Channel Walkie Talkies Phones UHF462-467MHz 3KM Interphone Range 2-Way Radio Great for Supermarkets,Shopping Centres,Kids Outdoor Activity,Red Warranty: Floureon M-880 Walkie Talkies has 12-month warranty and 100% friendly customer service Advantages: Good sound quality; Adjustable volume level; 22 channel PMR system; LCD backlit display; battery status indicator Range: Generous range up to 3km(1.86mile), MAX range up to 5km(3.11mile) in the open field. Applications: Great for supermarkets, shopping centers, festivals and any outdoor activities Kindly Note: Adverse weather conditions and buildings may affect the range