Anker SmartCharge F0 Bluetooth FM Transmitter | $13 | Amazon | Promo code VIVAFF22
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Anker’s Roav brand, the manufacturer of an incredibly popular dash cam, also makes some seriously smart car chargers. This one’s only $13 today with promo code VIVAFF22.

The SmartCharge F0 is an FM transmitter that takes the Bluetooth signal from your phone, and rebroadcasts it the FM radio station of your choice, giving you truly wireless audio and handsfree calls in older vehicles that don’t have Bluetooth or even an AUX jack built in. And since this is an Anker brand, you also get two high speed USB charging ports.