Specifications: Model Nuber: HYC-antenna-A03 Frequency Range: 174-240MHZ/470-860MHZ Gain: 30db Polarization: vertical Radiation: omnibearing Material: RG174 Product size: 225*135*0.6mm cable length: 3M / 9.84ft VSWR:≤2.0 Nominal Impedance: 75Ω Max Input power: 50W Connector type: SMA+USB Working Volt: 3-5V Package size: 255*160*26mm / 10"*6.3"*1.02" Product weight: 175g / 6.17ounces Fast and easy set up in 3 steps: & Connect the antenna to “CABLE/ANT IN” on the back of any HDTV. & Put it high on wall; Lay flat on table; Place it higher on window (strongly recommended) & Scan for channels using your TV's 'Channel Search' and be ready to enjoy free TV! Adjustment of Antenna Directions: &Connect the antenna to TV properly. &Set TV to Antenna mode. &When the signal quality is low, adjust the location of the antenna or rotate it towards the television station. & You can watch the clear TV program until the signal quality gets improved. SOME TIPS FROM THE MANUFACTURER: &This digital HD TV antenna is intended for indoor use only. &Place the antenna HIGHER or CLOSE to / in a window may result in better reception. You must rescan whenever you move the antenna. &Keep the antenna away from BIG POWER CONSUMPTION DEVICES, such as air conditioner elevator, hairdryer, microwave, etc. &Please go through your TV manual to make sure your TV comes with built-in tuner for free view if you want to use a flat HDTV. &For the maintenance of the antenna: Please use soft cloth with diluent mild detergent to clean its shell. PACKAGE: 1 x Indoor HDTV antenna with coax cable 1 x Amplifier signal booster 1 x User manual