Will it work with Samsung S10?

Yes, the Jansicotek Bluetooth FM Transmitter works well with most Bluetooth enabled devices, including smartphones.

Questions & Answers: Jansicotek Bluetooth Fm Transmitter for car, Bluetooth Car Transmitter 1.7 Inch Display, QC3.0/2.4A Dual USB Ports, AUX Input/Output, Mp3 Player.

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Jansicotek Bluetooth Fm Transmitter for car, Bluetooth Car Transmitter 1.7 Inch Display, QC3.0/2.4A Dual USB Ports, AUX Input/Output, Mp3 Player.

Features:
Works well with most Bluetooth enabled devices, such as iPhone, iPad, iPod, tablet and smart phones etc.
The radio adapter with wide compatibility can support TF/ Micro SD card in FAT format up to 32G, A2DP, MP3/ WMA format and also AUX output/input.
The device features Bluetooth V4.2 which can save energy and last for much longer and EDR to ensure faster data transmission rate and more stable connection between a Bluetooth device and the audio receiver.
Specifications:
Bluetooth:
Bluetooth vision: V4.2+EDR
Bluetooth frequency: 2.4 GHZ
Sensitivity: -42 db+/3 db 360
Effective range: 5M
RF output: 4 dbm
FM frequency:
FM: 87.5MHZ-108.0MHZ
Effective range: 2 M