To avoid holding the phone by hand, hands-free headsets and car systems use Bluetooth transmission to synchronize with the user's cellphone within a range of about 30 feet. See Bluetooth.

Additionally, customer choice in how they go hands-free will continue to grow in 2025 and beyond, with Super Cruise available on upcoming models including the Cadillac VISTIQ, Cadillac Escalade IQ ...

Compared to BlueCruise 1.0, 1.4 can stay engaged for up to eight times longer in hands-free mode. Compared to version 1.2, drivers will be able to go hands-free for up to five times longer.