Durable Li-ion Battery - Each walkie talkie radio comes with 1200mAh lithium rechargeable batteries, a recharge cable that allows up to 2 radios to be charged at once, which minimizes the burden, the walkie talkies can be used for 3-4 days with a full charge..Long Range Two-Way Radios - NXGKET walkie talkies for adults have pretty clear audio even at long distance, High/Low TX power selectable, just make sure you're on the same channel. 2-way radios walkie talkies support up to 3 miles communication range in open fields, adverse weather, buildings(yard, street), car and voyage will affect the range..Compatible with Any Radio - With 22 channels, 121 privacy codes to choose from walkie talkie set. You can communicate with other FRS radios regardless of brand by being on the same channel and privacy codes. With VOX switched on, NXGKET walky talky will auto turns itself on when the user starts talking and shuts off when there is no sound..Modernized Design & Function - 4 pack walkie talkies smallish in size, durable and environmentally friendly material, Large LCD screen with backlight, also support many advanced features, such as Auto squelch, Auto memory, Auto scan, Auto power saving, Low battery alert, Keypad lock(Channel-lock), etc..Suitable for Anyone - Carry in backpack or on the belt, NXGKET walkie talkies rechargeable provides long-range communication and clear sound for hiking, biking, camping trip, road trip, scavenger hunts and so on. 4 piece set of radios walk-in talkies are also a great communication tool for men, women, kids, and elders to talk with others at home..Lifetime Support: NXGKET 2-WAYS Radio has been tested to comply with FCC standards.(FCC ID: 2AYV7YG-811), The introduction of advanced technology and strict quality process control of walkies give us the courage to offer a 1-year warranty. Please feel free to contact us if any concerns about the item.