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Compact black FM transmitter with LED display and dual USB ports

Jansicotek

Jansicotek Bluetooth 4.0 FM Transmitter Car HD Radio

SKU CH-4V4X-TS3FH

Streams music and calls via Bluetooth 4.0 to FM radio, charges two devices at 3.1 A, and displays car battery voltage

  • TypeHD Radio Tuner
  • Streams music wirelessly with Bluetooth 4.0 connectivity
  • Charges two devices simultaneously via 3.1 A dual USB ports
  • Plays audio from USB drives and TF cards
  • Displays car battery voltage on LED screen for 3 seconds
  • Hands-free calls with built-in microphone and CVC technology

What this device does

The Jansicotek Bluetooth 4.0 FM Transmitter plugs into a 12V or 24V cigarette lighter socket and streams audio to a car radio on any frequency between 87.5 and 108.0 MHz. It pairs with phones, tablets or other Bluetooth 4.0 sources using A2DP, SBC, AAC, HSP and AVRCP profiles. Drivers who want wireless music and hands-free calls without replacing the factory stereo will find it useful.

What the bundle adds

Two USB ports supply a combined 4.1 A output; one port delivers up to 3.1 A and identifies the connected device to optimise charging for Android or iPhone handsets. The second port reads USB flash drives and TF cards, playing MP3, WMA, APE, FLAV or WAV files directly through the FM signal. A built-in microphone enables automatic switching to hands-free mode when a call arrives, with answer, reject and redial handled by a single button.

Build and daily use

The unit shows the vehicle battery voltage for three seconds after insertion, then enters automatic playback and reconnects the last paired device on power-up. CVC noise-reduction technology and an 85 dB signal-to-noise ratio (65 dB on FM) aim to keep calls and music clear within an effective range of 5 m or 16.4 ft. An LED display provides frequency and status feedback without distracting the driver. Not suited for vehicles lacking a cigarette lighter socket or for users who require digital radio standards beyond analogue FM.

Highlights

  • Streams music wirelessly with Bluetooth 4.0 connectivity
  • Charges two devices simultaneously via 3.1 A dual USB ports
  • Plays audio from USB drives and TF cards
  • Displays car battery voltage on LED screen for 3 seconds
  • Hands-free calls with built-in microphone and CVC technology

Specifications

BrandWanmingtek
TypeHD Radio Tuner

Questions about this item

Will the built-in microphone or Bluetooth 4.0 module need replacing after long daily use?

The unit uses a fixed microphone and Bluetooth 4.0 chipset with no user-serviceable parts; if either fails the whole transmitter must be replaced.

What stops me from running the dual USB ports at full 3.1 A output continuously?

The 12 V / 24 V input and internal regulator limit sustained current; prolonged maximum draw will trigger thermal protection and reduce output.

How hot does the charger get and does the fan run when both ports are loaded all day?

There is no cooling fan; the housing dissipates heat passively, so the body becomes warm to the touch under continuous 3.1 A load.

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