When using the LPS5 loopset for calling, you can speak directly into the integrated microphone. You do not have to hold the phone near your ear. You can use this inductive loopset with compatible devices that support Bluetooth wireless technology. The loopset wirelessly transmits sound from the phone, directly to a hearing aid that is set in “T” mode. The quality of sound depends on the level of your hearing loss, the hearing aid used and the amount of electromagnetic interference from the surroundings.