Feature 1 You can receive free ATSC TV signals anytime, anywhere, even when there's no traffic and no WiFI, you still can watch up to 30 TV programs. 2 Support for Android 4.4 and above, for Android smart TV, and car navigation can be used. 3 Support for Android phone / tablet / computer. 4 High sensitivity with powerful signal reception. 5 3 types of antennas, different antennas can be selected according to the environment 1)A binaural antenna, used in places where the signal is not good. 2)A singlepole antenna is used where the signal is good. 3) One is a bracelet antenna, suitable forDevice Requirements: 1. Mobile phone or tablet supporting for Android 4.4 and above. 2. Mobile phone must have MICRO USB and must support OTG function. Features: You can receive free ATSC TV signals anytime, anywhere, even when there's no traffic and no WiFI, you still can watch up to 30 TV programs. Support for Android phone / tablet / computer. Support for Android 4.4 and above, for Android smart TV, and car navigation can be used. High sensitivity with powerful signal reception. 3 types of antennas, different antennas can be selected according to the environment - 1)A binaural antenna, used in places where the signal is not good. 2)A single-pole antenna is used where the signal is good. 3) One is a bracelet antenna, suitable for outdoor, easy to carry. Specification: Type: ATSC Digital TV Receiver Material: ABS Video input: wireless transmission Support operating system: For Android 4.4 and above system Support resolution: 720P Chipset: For Siano sms2230 Input signal: 75 ohm digital TV antenna input Receiving frequency: TV 54-862 MHz MAX segment filter: 32pids Video format: MPEG2 MP and ML Audio format: MPEG2 audio layer I and II / AAC Weight: Approx. 89g Package list: 1 * ATSC Digital TV Receiver 3 * Antennas 1 * Instruction Manual Note: 1. Please allow 1-3mm error due to manual measurement. 2. Different monitor colors may be different. Thanks for your kind understanding.