Best operating systems

RadioShack 4-Channel 900MHz Wireless Intercom with VOX Mode

Consumer Alert: Most users do not need a license to operate this wireless microphone system. Nevertheless, operating this microphone system without a license is subject to certain restrictions: the system may not cause harmful interference.
it must operate at a low power level (not in excess of 50 milliwatts).
and it has no protection from interference received from any other device..

Consumer Alert: Most users do not need a license to operate this wireless microphone system. Nevertheless, operating this microphone system without a license is subject to certain restrictions: the system may not cause harmful interference.
it must operate at a low power level (not in excess of 50 milliwatts).
and it has no protection from interference received from any other device..

Smart Stat II/III. Please note that Smart Stat II and III are the same units and there is no difference between the two..
This Skytech Smart Stat II/III fireplace remote control system was developed to provide a safe, reliable, and user-friendly remote control system for gas heating appliances. The system can be operated thermostatically or manually from the transmitter. The system operates on radio frequencies (RF) within a 20' range using non-directional signals. The system operates one of 1,048,567 security codes that are programmed into the transmitter at the factory.
the remote receiver's code must be matched to that of the transmitter prior to initial use..

Consumer Alert: Most users do not need a license to operate this wireless microphone system. Nevertheless, operating this microphone system without a license is subject to certain restrictions: the system may not cause harmful interference.
it must operate at a low power level (not in excess of 50 milliwatts).
and it has no protection from interference received from any other device..

Consumer Alert: Most users do not need a license to operate this wireless microphone system. Nevertheless, operating this microphone system without a license is subject to certain restrictions: the system may not cause harmful interference.
it must operate at a low power level (not in excess of 50 milliwatts).
and it has no protection from interference received from any other device..

Consumer Alert: Most users do not need a license to operate this wireless microphone system. Nevertheless, operating this microphone system without a license is subject to certain restrictions: the system may not cause harmful interference.
it must operate at a low power level (not in excess of 50 milliwatts).
and it has no protection from interference received from any other device..

Consumer Alert: Most users do not need a license to operate this wireless microphone system. Nevertheless, operating this microphone system without a license is subject to certain restrictions: the system may not cause harmful interference.
it must operate at a low power level (not in excess of 50 milliwatts).
and it has no protection from interference received from any other device..

Consumer Alert: Most users do not need a license to operate this wireless microphone system. Nevertheless, operating this microphone system without a license is subject to certain restrictions: the system may not cause harmful interference.
it must operate at a low power level (not in excess of 50 milliwatts).
and it has no protection from interference received from any other device..

Rock-Solid 2.4GHz Operation - the wireless universe is constantly evolving, posing challenges for operating analog wireless microphone systems within increasingly narrow frequency allocations. AKG DMS300 digital wireless systems operate in the 2.4GHz band, a global license-free space.
Plug and Play - DMS300 systems were designed from the ground up for intuitive operation. Channel pairing is push-button painless, with channel number display for easy identification. Adaptive channel selection takes the guesswork out of locating available wireless channels. Up to 8 DMS300 systems can by synced and used simultaneously together..
Focus on Fidelity - enjoy pristine, studio-quality sound. The handheld transmitter features an authentic AKG microphone capsule and acoustical engineering, and it offers 24-bit 48kHz resolution and a linear frequency response. Plus, digital transmission means you'll encounter none of the interference found in traditional analog wireless systems..
Secure communications - sharing sensitive information? Trust the DMS100's built-in advanced AES 256-bit encryption to protect your signal and keep your wireless audio communications private. Perfect for confidential corporate or government settings..