LENCENT T25M FM Transmitter User Manual

: August 20, 2024
: Lencent

LENCENT T25M FM Transmitter

USER MANUAL

Model: T25M
Manufactured by LENCENT

Specifications

Hardware Version: V1.0
Model: T25M
Software Version: V1.0
HVIN: T25M
Bluetooth Version: V5.4
FCC ID: 2AZAY-T25M
DC Input: 12V-24
V IC: 27089-T25M
Buletooth Frequency Range: 2402.00-2480.00MHz
BT Transmitting Power: 0.81dBm(EIRP)
FM Frequency Range (US/CA): 88.1-107.9MHz
FM Frequency Range (UK/EU): 87.5-108.0MHz
FM Transmitting Power (UK/EU): -46.8dBm(EIRP)
Receiver Category: 2
Extreme Temperature: -20-45℃

The USB port in product shall only be connected to a USB interface of version USB3.0 and below.

Declaration of Conformity

Hereby, [ LENCENT ] declares that the product [Bluetooth FM Transmitter for Car / Model T25M] is in compliance with essential requirements and other relevant provisions of Directive 2014/53/EU. The full text of the EU declaration of conformity is available by scanning the following QR code:

Package Contents

1FM Transmitter
1User Manual

Product Diagram

1. USB-C Charging Port (PD30W)
2. Microphone
3. USB-A Charging Port (QC 3.0 18W) & U-Disk Reading Port

4. Next Song

Press: next song, FM frequency+
Press and hold: switch music source

5. Multi-Function Button

Press: answer/hang up call, play/pause music
Press and hold: reject call
Press twice: redial call
Rotate left: volume-, FM frequency-
Rotate right: volume+, FM frequency+

6. LED Display Screen

7. Previous Song

Press: previous song, FM frequency-
Press and hold: activate voice assistant

8. Micro SD Card Slot

9. Light Switch

How to Use FM Transmitting Radio

1.Plug the FM Transmitter into the cigarette lighter. The LED display will show the car battery voltage first, then “bt” (Bluetooth) and keep flashing

2. Tune your car FM radio to a blank FM frequency, for example: 88.1. Any frequency works as long as it is blank, NOT in use (no music, no broadcasting).

Note: Please set your radio to “Manual Search” mode since the radio will skip the blank FM frequency automatically if it is under “Auto Search” mode, which is impossible to find a blank frequency.

3. Adjust the frequency of the transmitter to be the same as the car radio. Press and hold the multi-function button for 3-5 seconds until the frequency number is shown in the display, then rotate the knob or press Previous/Next button to change its frequency.

4. Turn on the Bluetooth function on your phone and select “T25M” to connect. The display will stop flashing once it is connected successfully.

5. Open the music player/navigation apps on your phone. You can play music, navigate or answer hands-free calls through your car stereo system when both of the frequencies are paired.

Tip: To achieve the best sound quality, it is suggested to set the volume of the phone and transmitter to the max and then adjust your car volume to an appropriate level.

USB Flash Drive/SD Card

If you prefer to play music through a U-disk or SD card, please follow the step 1-3 above, and then insert the U-disk or SD card (≤64GB, FAT32 format) to the USB reading port/Micro SD card slot. It will automatically detect and play the music in MP3/WMA/WAV/APE/FLAC format.

Note : To prevent your car battery from being drained, please unplug the T25M from the car cigarette lighter after use.

Operations:

1. Play/Pause music, Answer/Hang up phone calls -Press the multi-function button once
2. Reject phone calls – Press and hold the multi-function button for 2 seconds
3. Redial phone calls – Press the multi-function button twice
4. Previous/Next song – Press the Previous/Next button
5. Volume up/down – Rotate the multi-function button
6. Activate voice assistant – Press and hold the Previous button
7. Switch music source (Bluetooth/U-Disk/SD Card) – Press and hold the “Next” button
8. Adjust/Turn on&off the LED light – Press the Light button
9. USB Charging – PD30W USB-C charging port + QC 3.0 18W USB-A charging port

Trouble Shooting

Transmitter does not turn on

1. Check if the transmitter is in good contact with the cigarette lighter, and if the cigarette lighter is functional well (12V-24V).

Adjust/turn off the LED light

1. Press the “light” button on the back of the transmitter to change or turn off the LED light: red, green, blue, yellow, purple, ice blue, white, off.

Can not play music from USB flash drive or SD card

1. Check if the capacity of the U-disk or SD card is with in 64GB.
2. Check if the U-disk or SD card is in FAT32 format and if the music is in MP3/WMA/WAV/APE/FLAC format.
3. Check if the U-disk or TF card is damaged or dusted.
4. If Bluetooth, U-disk and Micro SD card are connected at the same time, please press and hold the “Next” button to switch the music source.

Can not play phone music/sound is not good

1. Check if the Bluetooth is connected successfully, please make sure you have used a blank radio station and the station on the transmitter is set to the same one as the radio.
2. Try to change multiple frequencies to find the most empty one (no broadcast).

3. For the best audio quality, please set the volume of your phone and FM transmitter to the max, and then adjust the car volume to an appropriate level.

Can not hear the voice of the other party

1. During the call, try to press and hold the “multi-function button” for 3-5 seconds to switch from “Handset Mode ” to “Hands-Free mode”.

Can not connect to Bluetooth

1. Check if there is “T25M” displayed in your phone Bluetooth list.
2. If it is once connected to your phone, please try to disconnect or ignore it and then reconnect it.
3. Please check if the transmitter is connected to another device. If so, please disconnect it.

Volume is too low

1.Please turn on Bluetooth function of your phone—choose Bluetooth Settings—choose “T25M”—choose “device type”—choose “car stereo”.

Cannot sync with the radio/radio station keeps changing or skips by

itself

1.If there is a “TA” or “TP” button in your car, please turn off the “TA” or “TP” function to avoid interference.

ISED Statement

English:This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada’s licence- exempt RSS(s). Operation is subject to the following two conditions:

(1) This device may not cause interference.
(2) This device must accept any interference, including interference that may cause undesired operation of the device. The digital apparatus complies with Canadian CAN ICES-3 (B)/NMB-3(B).

This device meets the exemption from the routine evaluation limits in section 2.5 of RSS 102 and compliance with RSS 102 RF exposure, users can obtain Canadian information on RF exposure and compliance.

This equipment complies with Canada radiation exposure limits set forth for an uncontrolled environment.