Aaukey FM Bluetooth car transmitter

Aukey BT-F1 wireless Bluetooth car transmitter.

Key features:

After setting the FM frequency and establishing a Bluetooth connection with your smartphone, you can:
Listen to music from your smartphone without an audio cable using the Aukey Bluetooth FM transmitter.
Use hands-free calling during a phone call.
Charge your smartphone, tablet, GPS, camera or other USB-charged device using the transmitter's open USB port.

Specifications:

Bluetooth name: Aukey BT-F1.
Music quality: Hi-Fi stereo.
FM frequency range: 88.1 - 107.9 MHz.
Interval: 0.1 MHz.
Effective range: 5 M 15 feet.
Power: DC 12 - 24V.
USB output: DC 5V 1A.
Battery life: 2.5 hours.
Transmission range: 20Hz - 16kHz.
SNR: ≥45 dB (1KHz 100%).

Package includes:

Aaukey FM Bluetooth transmitter for the car power adapter, wireless FM transmitter kit.

Used product.
Checked and tested, fully functional, practically like new.
No packaging.
No instruction manual.