Retevis RT21 Walkie Talkies 3000mAh Generation 2 FRS Radio 16CH UHF Two Way Radio Rechargeable VOX Scramble 2 Way Radios(4 Pack) with 2 Pin C-Type Earpiece(4 Pack) 3000mAh battery capacity will last 36 hours using and support 120 hours long standby FRS frequency could using directly when out of the box and easy for you to operate Built-in scrambler can keep your private communication and enhance your communication safety Equipped high quality and comfortable earpiece will offer you hands free;durable radio body and accessories help you save a lot Simple and Convenient return process;1 year radio warranty and 2 month warranty for accessories;30 day return with no questions asked