FM transmitter Setty TFM-02 2.1A — in-car FM adapter with USB charging output 2.1A

The Setty TFM-02 2.1A FM transmitter allows playback of music from a microSD card, a USB flash drive, or a mobile device via Bluetooth or a 3.5 mm line-in cable. It also functions as a car charger through its USB port with a maximum output current of 2.1 A. A built-in microphone enables hands-free calling when connected to the vehicle radio on a chosen FM frequency.

Advantages

The device supports multiple playback sources (microSD, USB, Bluetooth, line-in) and combines audio transmission with USB charging. Its Bluetooth connection simplifies wireless streaming, while the integrated microphone provides hands-free call capability. The compact design fits standard 12 V car sockets and the FM transmission covers the standard 87.5–108 MHz band for compatibility with most car radios.

Suitable for

• Listening to music from microSD cards or USB flash drives in vehicles
• Streaming audio from smartphones or tablets via Bluetooth
• Playing audio from portable players using a 3.5 mm line-in cable
• Charging mobile devices in the car with a 2.1 A USB output
• Making and receiving hands-free calls while driving

Key specifications

• FM transmission frequency: 87.5–108 MHz
• microSD reader: up to 32 GB
• USB flash drive support: up to 32 GB
• Bluetooth range: up to 5 m
• FM transmission range: up to 2 m
• Microphone effective range: up to 2 m
• Input: 3.5 mm line-in/audio jack
• USB charging output: 2.1 A (maximum)

How to use

Insert the Setty TFM-02 into the vehicle’s 12 V socket and connect a microSD card or USB flash drive, or pair your mobile device via Bluetooth. Alternatively, connect an audio source with a 3.5 mm cable to the line-in jack. Tune the car radio to an unused FM frequency within 87.5–108 MHz and set the transmitter to the same frequency to start audio playback. Use the built-in microphone for hands-free calls when a phone is connected.

Usage recommendations

Choose an FM frequency with minimal local radio interference for the best audio quality and position the transmitter so the line of sight to the mobile device is unobstructed to maintain the Bluetooth connection. Ensure connected storage devices do not exceed 32 GB and avoid using damaged cables or media.