Features: With compact size, specially designed circuit produces exceptional reception. Supports receiving both UHF/VHF signals and free Digital signals. Receive free digital and analog signals off air. Compatible with HD/DTC Receiver, PC, Notebook, DTV/HDTV. Supports 1080i 1080p 720p. Ultra thin and lightweight. Multi-surface suction-cup stand. No external power required. Suitable for United States area. Note: Please make sure your TV and the antenna connector is matching If use old analog TV, you must use a Digital Converter Box. Attention: May require digital converter box when connected to TV. May require TV turner card when connected to desktop computer. May require USB adapter when connected to notebook computer.