Retevis R888s plus Walkie Talkies UHF 400-470MHz 3W FM CTCSS/DCS 16CH Single Band with Earpiece VOX Bright Flashlight Hand Held Mobile Ham Radio Transceiver (Black) 1800mAh battery;Battery save;Battery low alert;Busy channel lock-out function keep your exchange smooth and security FM radio: Press the monitor key to open the machine, FM radio opened Bright flashlight function make things easier when in dark environment Range up to 3 miles (5 km) depending on environment and terrain Simple and Convenient return process:1 year warranty and 30 days no reason to return; No matter any reason, within 30 days you can apply for a return (Including the radio accessories)