Most indoor HDTV antennas list coverage for both VHF and UHF. Some listings provide explicit frequency ranges such as VHF 174–230 MHz and UHF 470–862 MHz.
Product details commonly list multi‑directional and semi‑directional designs. Flat antennas often advertise multi‑directional UHF and Hi‑VHF elements, while loop or set‑top models are frequently described as semi‑directional.
Several listings explicitly mention compatibility with 4K and 8K UHD and NEXTGEN TV, stating the antennas are ready for those broadcast standards.
Amplified models often note built‑in or detachable amplifiers, noise/4G–5G filtering, and power specifications. One listing specifies DC 5V/550mA operation, an output level of 105 dBuV and a noise figure under 3.5 dB.
Many indoor antennas are marketed as very slim or "paper‑thin." One example lists a thickness of 0.04 inches, and several product descriptions use terms like "super slim" or "paper‑thin."