Beifeng Interphone Creative Works——BF-5111UVProfessional handheld FM walkie-talkie, red and white combination of personality keyboard with pot-type novel keys, so that the communication operation is more convenient. The unique full-English menu display, supplemented by DTMF function, makes the communication operation and address book storage of the whole machine more handy. Dust-proof and waterproof IP54, as many as four kinds of fast charging methods, to ensure your safe communication in various climatic environments, is a quality of life for you to enjoy.Travel walkie-talkie、Mountaineering walkie-talkie、Self-driving walkie-talkie。 Storage Dialing This function is used to implement fast signaling code call. The storage dialing function is written in the programmable key, and then the function can be executed by inputting the serial number of the stored signaling code coding table. Monitor Allowing users to turn on or off the listening function to monitor current channel activity helps to listen to weak signals. (This function can only be implemented in long press) Emergency alarm Allow users to turn on or off the emergency alarm function. Power switching Users are allowed to switch between high (H), medium (M) and low (L) transmission power. Band switching Users are allowed to switch the V/M/U band frequency in the frequency mode, or they can input the frequency of each band directly through the keyboard. Radio switch Turn on and off the radio function. Adjustable FM receiver range is 87-108 MHz. Lighting light switch Turn on and off the lighting function. Backlight Turn on the backlight function. Can be set to turn on, automatically (when more than 5S without any operation, the backlight will automatically turn off), turn off the backlight three options. Inverted frequency This function is used to realize the interchange of current channel receiving, transmitting frequency, receiving and pronouncing sub-tones. Squelch Used to silence the speaker when you do not receive the signal. When the noise is turned off, you will hear the background noise from the speaker. Background noise is not heard when the noise is turned on. Voice control When you turn on the voice control function, you can communicate without pressing the PTT key (with headphones) Launch time limit This function is used to set the transmission timeout limit time, to prevent the intercom from occupying a channel too long, and to avoid inadvertently occupying the channel. Prompt sound This function is used to set prompt sound, including keyboard sound, alarm sound and voice prompt. Mail list This function is used to view the list of address books stored by frequency writing software. It can store up to 128 contact lists. In the address book, you can see the address book name and ANI code. Communication Records This function is used to view the latest received 10 manual dial-up call records. Launch prompt sound This function is used to set the start or end of the launch to send a reminder sound to inform the user. You can choose to start the launch, end the launch, or both or choose to close. Busy Channel Locking (BCL) Prevent sending signals to busy channels and interference of current calls. Launch Monotone Transmitting single-tone rate is a way to start relay. The single-tone rate can be changed by writing software, and the range can be changed from 288 Hz to 3000Hz. Fast dialing This function is used to dial the called user number directly with the digital keyboard. copy The function supports the channel data replication function of two walkie-talkies. Data clearance This function is used to empty the data of the walkie-talkie.