Radtel RT-A1 FRS Analog & Digital Two Way Radio with AI Noise Reduction Dual Noise Cancelling Walkie Talkie Voice Recording & Playback Long-Lasting Battery for Construction Site Bar Airport

Radtel RT-A1 Analog & Digital Walkie Talkie with AI Noise Reduction, Voice Recording ( please note that the radio can't communicate with other digital radio or DMR radio!) 1.Tx/Rx LED indicator The red light illuminates during Tx, and the green light illuminates during Rx. 2.Channel Switch Turn clockwise to increase the channel value and counterclockwise to decrease it. There are a total of channels. 3.POWER Switch/VOLUME Controller Turn clockwise to power on the walkie-talkie. To power off, turn counterclock wise until a click is heard. Adjust the volume by turning the controller. 4.PTT Switch Press PTT and speak into the microphone to call the other party. The red light indicates transmission. If no transmit frequency is set for this channel, a beep sound will be heard and the red light will illuminate. Release PTT to receive, and if there is a signal, the green light will illuminate and the speaker will activate. 5.Squelch Level Adjust the squelch level to set when the walkie-talkie turns off and on upon receiving signals of varying strengths. A lower squelch level allows more background noise when turned on, resulting in potentially longer communica tion distances but weaker anti-interference capability when activated. The squelch level can be set via Customer Programming Software, with Level 3 being the default. 6.Transmit Timeout The transmit timeout feature prevents a single walkie-talkie from occupying a channel for too long and avoids damage from prolonged transmission. If continuous transmission exceeds the limit set by Customer Programming Software (15S to 180S), the walkie-talkie stops transmitting and an alarm sounds. To stop the alarm, release the PTT switch, and the walkie-talkie returns to receive mode. 7.Battery Saver Function Set to enter battery saver mode, which can be enabled/disabled via Customer Programming Software. Note: There are five sleep ratio options settable in the Customer Programming Software. 8.Monitor Define Side Key 1 or Side Key 2 long/short press as the monitor function via Customer Programming Software. After setting, long/short pressing the side key switches the walkie-talkie's monitor function on/off, with Side Key 1 short press defaulting to enabling monitoring. 9.Scan Define Side Key 1 or Side Key 2 long/short press as the scan function via Customer Programming Software. Three scan types are available: SE, CO, TO, settable via Customer Programming Software； 10.Channel Lock Define Side Key 1 or Side Key 2 long/short press as the channel lock function via Customer Programming Software. Locking the channel prevents accidental changes； 11.Roger Beep Enable/disable the Roger Beep via Customer Programming Software, defaulted to off. 12.AI Dual-direction Noise Reduction Noise reduction has 10 levels settable via Customer Programming Software. Define Side Key 1 or Side Key 2 long/short press as noise reduction control, defaulted to Side Key 2 short press to enable, with levels 1-10 adjustable. 13. Language Selection Define Side Key 1 or Side Key 2 long/short press as the language selection function via Customer Programming Software. Six languages are manually switchable: English, French, German, Italian, Spanish, and Russian, with Side Key 1 long press (2S) defaulting to enable language selection； 14.Voice Operated Transmit（VOX） VOX allows transmission without pressing the PTT button, initiating with speech and stopping automatically when speaking ceases. Customizable via Customer Programming Software to Side Key long/short press to enable, defaulted to off； Note: VOX levels are settable via Customer Programming Software with 9 levels and delay times adjustable between 0.5S and 3S. 15.Recording and Playback Each recording is no longer than 1 minute, with a maximum of 6 recordings. Operation: Define Side Key 1 or Side Key 2 long press as the recording and playback function via Customer Programming Software. Once in playback mode, short pressing Side Key 1 plays the previous recording, and short pressing Side Key 2 plays the next. 16.Emergency Alarm Define Side Key 1 or Side Key 2 long/short press as the emergency alarm function via Customer Programming Software. After setting, long pressing (2S) Side Key 2 activates emergency alarm mode, exitable by pressing PTT, with Side Key 2 long press (2S) defaulting to enable； 17.Battery Level Announcement Define Side Key 1 or Side Key 2 long/short press as the battery level announcement function via Customer Programming Software, announcing levels from 0% to 100% with 1% accuracy 18.One-key Pairing/ Wireless Pairing Press and hold side button 2 while powering on under channel 1/2/3 to enter One-key Pairing/PAIRING SEDN/PAIRING ACCEPT status respectively. a) PAIRING ACCEPT，the device enters data reception mode with the green light flashing, disabling all other operations. During data reception, the green light remains steady， b) PAIRING SEND，the device enters data transmission mode with the indicator light displaying red, disabling all other operations. Upon completion, the walkie-talkie automatically restarts. 19.CTCSS/DCS This product supports 260 sub-tone codes, programmable with 50 analog sub-tone codes and 105*2 digital sub-tone codes (N-phase and I-phase) via programming software 20. Digital Mode and Analog Mode Selection: This device supports both digital and analog modes. The function can be configured through the PC programming software. Specifically, you can select either “Analog Channel” or “Digital Channel” for the corresponding channel under the “Channel Configuration” column. 20. Digital Call Mode SettingsPrivate Call: This function can be configured through the PC programming software. Select Private Call in the call type field and enter the desired call ID. The valid ID range for private calls is 0–8388607.Group Call: This function can be configured through the PC programming software. Select Group Call in the call type field and enter the desired call ID. The valid ID range for group calls is 8388608–16777214. Group receiving supports 8 lists, with 8 group IDs per list. A single channel can receive up to 8 group IDs, within the range 8388608–16777214.All Call: This function can be configured through the PC programming software. Simply select All Call in the call type field. Technical spec Frequency Range: 400-470Mhz Output power: 2w/0.5w Channel: 22 FRS Voltage 3.7V DC Standby time: More than 30 hrs Package: 2x RT-A1 FRS radios 2x 3000mAh battery 2x Desktop charger 2x US type AC adapter 2x USB-C Charger cable 2x Belt clip 1x ENG user manual