Crystal Wolfe writes:

Husband and I have been using the Sena system (helmet unit and
radio adapter) the last few years. I have a Yaesu FT250, he has an FT270.
Crystal clear and works great in the mountains as well as our Florida trips.
Friend has a Sena for his Baofeng with the same results. Standby time on the
batteries is 50 hours, which is awesome if you forget to turn them off like I
do.

https://www.amazon.com/Sena-SR10-10-Bluetooth-Adapter-Two-Way/dp/B008R0LIHO/ref=mp_s_a_1_2?keywords=senasr10&qid=1557615405&s=gateway&sr=8-2

https://www.amazon.com/Sena-Profile-Motorcycle-Bluetooth-Intercom/dp/B00BTSFN54/ref=mp_s_a_1_7keywords=sena&qid=1557615728&s=gateway&sr=8-7

https://www.amazon.com/Sena-SC-A0110-Kenwood-Twin-Pin-Connector/dp/B0068EQ05G/ref=mp_s_a_1_12keywords=sena+radio&qid=1557615867&s=gateway&sr=8-12&th=1&psc=1

Leading Edge writes:

For telephone, I use a Sena 3 Bluetooth headset. It works so great
and I mostly fly flatties with cell signal, so I dumped the radio last year.
But, I want a radio. I just ordered the SM10 to go with the Sena - this is for
Bluetooth connecting my VX150.