$10
Blackweb CRBLV004 FM Transmitter with Bluetooth Wireless Technology
Supports FM frequency: 87.5 - 108.0 MHz
Hands-free phone answering function
Built-in USB port for charging (5V, 2.1A)
1.44" LCD display with blue backlight
Supports caller ID
Supports ID3 display of micro SD card slot
Micro SD card (support max 32GB) slot for audio playback
Craig FM transmitter connects to any device via 3.5mm aux in port
Rotary knob control (volume up/down, play/pause and phone call answer/hang up)
Goose-neck design allows the flexible metal hose to be adjusted to a wide variety of positions
Condition is like new
https://www.amazon.com/Blackweb-CRBLV004-Transmitter-Bluetooth-Technology/dp/B0791K994Y
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