Digital Indoor TV antenna digital Indoor TV antennaGround wave digital broadcasting system is abbreviated as DTMB. DTMB is an urban public welfare digital TV approved by the state radio and television, which is a project benefiting the people. At present, it has been fully covered in the first and second tier cities and some counties in China. Citizens can receive free viewing by installing indoor and outdoor antennas. The digital signal has clear picture quality and no direction restrictions, so it's easy to watch the live broadcast.Good use effect, expand signal - receive more HD digital channelsEffectively solve signal problems 1. Weak signal 2. Blurred image quality 3. Less station searchTerrestrial digital television (DTMB) is a free public service. The country is free, clearer and smoother, covering Guanghui and the whole peopleFrequency: vhe/UHFStandard: dtmb/DMB-T/DVB-T/ATSCInterface: TV/IEC/PAL/English F portGain: 30 DBIWorking voltage: 5VLine type: 1.5C-2VColour:blackMaterial:ABSSize:15 x 8 x 7.5CMPackage Contents:1 * TV AntennaOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.