The traditional wireless 2.4 GHz frequency has become very overcrowded from remote control helicopters to Wi-Fi tablet users.
To combat this overcrowding the 5 GHZ range has been introduced. The 5.8 GHz range has not been overused as the 2.4 GHz has. Because of this there is less interference from other devices allowing for better connections.
This is good news for streaming video content which with the high-speed 802.11ac protocol is able to transmit up to a theoretical 750 Gbps.
This means that 5.8 GHz wireless security cameras will be able to transmit a video signal much better than in previous years.
The distance a 5 GHz wireless security camera will be able to travel has not been improved but interference and quality has. To improve distance a wireless booster still needs to be used.
Since simple things such as a tablet, or even a microwave oven which transmits at 2.4 GHz frequency when operating, can hinder a wireless camera feed. The 5.8 GHz frequency will simply be much better transmitting clear video and sound.
Dual band 2.4 GHz and 5 GHz security cameras on Amazon.