Omaker via Amazon offers its Hand-free Bluetooth 4.0 Car Kit w/ Built-in Dual-USB Charger for $33.99. Applying coupon code HL3LZWIO drops the final price to $23.99 Prime shipped. That’s good for 30% off the regular going rate and the lowest price for this model available.
It comes with a Bluetooth earpiece, dual-port USB charger, and a 3.5mm headphone jack. This kit allows you to take calls through your stereo system while also charging your device. Early reviews are positive.