ESTONE BT70 Bluetooth FM Transmitter 1.7 Inch Display Dual USB QC3.0 2.4A 12-24V

Hands-free car adapter with rotating display

The ESTONE BT70 plugs into a 12-24 V socket and adds Bluetooth audio streaming, hands-free calling and dual USB charging to any vehicle. A 1.7 inch LCD on a 270-degree gooseneck shows the song title or incoming number and the car battery voltage at start-up. Music can be played from a paired phone or a TF card up to 32 G. The unit is new and designed for drivers who want a single device for audio and charging.

QC3.0 fast-charge port with voltage steps

The orange USB port delivers QC3.0 output at 3.5-6.5 V 3 A, 6.5-9 V 2 A and 9-12 V 1.5 A, while the blue port supplies a fixed 5 V 2.4 A for standard devices. Both ports operate simultaneously so two phones can charge at once without an extra adapter. The specific voltage steps are the single specification that determines whether your device will fast-charge at its maximum rate.

Continuous operation while charging two devices

Under sustained load the transmitter keeps the FM audio link active while both USB ports supply their rated currents. The display remains lit and the gooseneck holds its position during long journeys. A long press on the next-track button shuts off the FM and Bluetooth functions but leaves the charging ports powered. Buyers who need more than 32 G of media storage or a second transmitter for another vehicle should look elsewhere.