LENCENT FM Transmitter T25 Bluetooth car kit with 2 USB ports, TF card & USB playback
Product description
If you still rely on an older car stereo with no Bluetooth, an FM transmitter can be a practical bridge. The LENCENT FM Transmitter T25 aims to do that job while also giving you two USB charging points and support for music stored on a TF card or USB drive.
On paper, it covers a lot of the everyday bases: Bluetooth audio, hands-free calling, and even car battery voltage detection via the cigarette-lighter display. That’s a neat package for someone who wants one small gadget to tidy up audio and charging in the car. Still, it’s worth keeping expectations realistic—FM audio quality can depend heavily on local radio conditions.
The essentials
This is a Bluetooth FM transmitter that plugs into your car’s cigarette lighter and sends audio to your head unit through FM radio. You can play music from Bluetooth, or from storage media such as USB memory and a TF card (microSD), with the unit designed to recognise common music formats including MP3, WMA, WAV, APE and FLAC.
The transmitter also supports hands-free calling, using CVC noise and wind cancellation technology to improve voice clarity while you drive. If you use phone apps for navigation, the unit is positioned to carry through voice guidance too.

What you’ll notice day to day
The most “real world” features here are the ones you touch frequently: connectivity, playback control, and charging.
- Dual USB charging: it includes two USB ports that can charge two devices at the same time (rated for 5V-2.4A and 5V-1A). If you travel with a passenger phone on charge as well, that saves swapping cables.
- Auto connection: when you power it on, it’s designed to automatically connect to the last paired Bluetooth device.
- Voltage display and blue ambient light: it shows your car battery voltage via the cigarette-lighter plug, and uses a blue backlight circle to make operation easier.
That combination makes it feel less like a single-purpose gadget. It’s more like a small hub for audio, calls and everyday power.
Audio and calls: where it shines (and where it may fall short)



CVC noise cancellation and wind cancellation are included for full duplex style sound quality, which is exactly the kind of spec you want when you’re making calls on the move. In theory, this should help your caller hear you more clearly and keep conversations from getting drowned out.
For music, the unit is designed to broadcast across a wide FM range from 87.5MHz to 108MHz. In practice, FM transmitters often work best when you can find a clean frequency in your area. If your commute route has lots of interference or busy stations, you may notice more distortion or dropouts than you’d get from a direct audio connection.
It’s also designed for compatibility with most Bluetooth-equipped smartphones and other Bluetooth devices, but like any wireless setup, connection stability can still depend on your specific phone and car environment.
Storage playback and formats
If you don’t want to rely purely on streaming, this transmitter supports music via USB memory and a TF card. The base info says it can handle storage up to 32GB for both USB memory and microSD.

One thing to keep in mind: the transmitter supports a wide set of music formats (WMA, MP3, WAV, APE and FLAC). That’s helpful if you already have a personal library in different formats, rather than only one “accepted” type.
A micro example: imagine you’ve got a TF card prepared with your weekend playlists. You plug the unit in, power it up, and you can start playback without pairing your phone first—useful if you’re in and out quickly at petrol stops or short errands.
Specs that matter for buying
You’re mainly buying for the combination of FM broadcast, Bluetooth control, charging, and the ability to use external storage.
Here are the practical details that influence whether it fits your setup:



Tech specs
- Type: Bluetooth FM transmitter for car stereo
- Inputs / audio sources: Bluetooth, USB memory, TF (microSD) card
- Storage support: USB memory up to 32GB, TF card up to 32GB
- Supported music formats: WMA, MP3, WAV, APE, FLAC
- USB ports: 2 ports rated 5V-2.4A and 5V-1A
- Calls: hands-free calling with CVC noise and wind cancellation
- FM range: 87.5MHz to 108MHz
- Power and safety features: over-current protection, over-voltage protection, short circuit protection, intelligent temperature control
Who it suits best (and who should skip it)
It makes sense if you have a car stereo that takes radio input but lacks Bluetooth, and you want music plus hands-free calling from a single plug-in device. It also suits anyone who wants two-device charging in one go.
It’s not the best choice if you expect “digital-sounding” music across all locations. With FM transmitters, sound quality can get affected by interference, and that can be hit-and-miss depending on where you drive.

Worth considering if you like the idea of using a TF card or USB drive as a simple offline library. But you might want to look for alternatives if you strongly prefer wired audio or your area frequently suffers from FM congestion.
Quick questions before you buy
Does it automatically reconnect to my phone?
It’s designed to automatically connect to the memorised paired device when the power is on.
Can I charge two devices at once?



Yes, it has two USB ports and is intended for simultaneous charging.
What music file types does it support?
It supports WMA, MP3, WAV, APE and FLAC.
Will it show my car battery voltage?
It includes car battery voltage detection and displays the voltage when plugged into the cigarette lighter.
Is the FM range broad enough?
The transmitter is specified for an FM range of 87.5MHz to 108MHz, which should help you find a suitable frequency.
When it makes sense
Buy the LENCENT FM Transmitter T25 if you want a straightforward way to add Bluetooth audio and hands-free calling to a basic car stereo, while also getting two USB charging ports and support for TF card/USB playback (up to 32GB). Check that you’re comfortable with FM broadcasting as your audio path, and that you can usually find a clear frequency in your usual driving area.
You may want to skip it if your priority is consistently clean audio quality regardless of location, or if you’d rather avoid anything reliant on FM radio conditions.
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