It is connected to the telephone via a special microphone cable (transmitter with a pager button). A LED is used for identifying the signal and as a battery warning light.
Telephone transmitter
Type of connection:acoustic
Connected to the telephone via a special microphone cable
LED is used for identifying the signal and as a battery warning light
Wireless Receiver Transmission - RF
Wireless - Yes
Current Draw:
1 Amps
DC Voltage:
9 Volts
Depth:
40 mm
Height:
145 mm
Width:
50 mm
Product Weight:
0.13 kg
Colour:
Metallic Silver
Type of connection:
acoustic
Transmission frequency:
868,35 MHz
Scope of delivery:
1 m microphone cable, 9 V battery, installation kit for wall mounting