16 CHANNELS: The walkie-talkie has 16 channels, 50 CTCSS audio and 105 CDCSS audio on each programmed channel, which can avoid interference from other channels. You can choose the appropriate channel according to your needs. Long-Rang: 1-4 Miles Range (Depends on working environments). VOX Function and Built-in LED Flashlight: This two-way radio has a VOX function. When you speak into the microphone, the other party can hear you clearly without pressing any buttons. The flashlight can provide emergency assistance. Greaval GV-8S: This walkie talkie has been tested by an FCC accreditted lab and complies with the limits for a Class B digital device. FCC ID: ZP5BF-888S, Frequency range: UHF 400-470 MHz. 【Warranty】30-day hassle-free return and lifetime customer service. Feel free to contact us through the Amazon message if you encounter any issues, our support team is always there to help. 16 CHANNELS: This Greaval GV-8S two-way radio has 16 channels, which can without a doubt avoid radio interference. Whether you're on a family vacation, camping, or hiking, or doing outdoor activities, these home walkie-talkies provide you with 2-way radio communication convenience. There is no need to share the same channel with others. 800 MHZ FREQUENCY: These Baofeng radios have a frequency range of 400-470 MHz, which is free from civil and commercial radio services. Please check the frequency of your local radio station before using it. Long battery life: The two-way radio has a built-in 1800mAh. It can be used for 8-12 hours after being fully charged for 2-3 hours. It is very convenient to use and carry. Excellent performance: This walkie-talkie has an effective receiving range of up to 3-5 miles, depending on terrain and environmental conditions. It has a built-in flashlight and VOX function for hands-free operation.