This Equipment provides top quality and reliability due to the fact that the transmitter and receiver are perfectly matched eliminating tuning and frequency drift. operating in the region of 170-175 MHz on a very narrow bandwidth they offer a high level of security. VHF crystal room transmitter measures 38 x 15 x 7mm. Powered by 3v lithium battery to give up to a weeks battery life. The high power is similar in size but only has a battery life of 20-40 hours. Transmits a crystal clear signal as soon as the handset is lifted.
Line powered so requires no battery.
Suitable for UK,USA, Canada, Australia and most other countries telephone systems. Complete with transmitter and full instructions. Suitable for UK,USA, Canada, Australia and most other countries telephone systems. When the telephone is in use, it will transmit both sides of the conversation with crystal clarity up to 500 meters away. It requires no batteries as it is line powered and will monitor all extensions regardless of its location.