Before revision: Short-range devices are low-power transmitters typically limited to 25–100 mW effective radiated power (ERP) or less, depending on the frequency band, which limits their useful range to a few hundred meters, and do not require a license from their users.
After revision: ,Short-range devices are low-power transmitters typically limited to 25–100 mW effective radiated power (ERP) or less, depending on the frequency band, which limits their useful range to a few hundred meters, and do not require a license from their users.