| 主权项 |
1. A hearing aid system comprising a hearing aid and a remote control device, the hearing aid having a power supply, a microphone, a receiver, a signal processor and an RF receiver for receiving commands wirelessly from an external device, said processor being adapted for at least a first and a second mode of operation, where the first mode is a stand-by mode and the second mode is an operational mode, wherein the processor is adapted to respond to a message from the remote control received by the RF receiver by switching from the second mode into the first mode, and wherein the processor is adapted to respond to the absence of the message for a predetermined interval of time by switching from the first mode to the second mode; and wherein the remote control device has an RF transmitter adapted for continuously transmitting power-off commands in a low power mode so as to limit the effective range of the power-off commands. |
