Panasonic's new hearing aids will work with Bluetooth devices, a feature often found with other hearing aids. However, the R1-W Series requires users to carry a transmitter in order to relay the sound to the earpiece. Other features of the in-canal devices include the ability to connect directly to a smartphone or to a TV. The company says the R1-W Series offers 300 hours of service before needing a fresh set of batteries. Read more here.