The TV signal finder is microprocessor controlled, making it very reliable and accurate. Signal strength is displayed by LED, intuitive to read. It "s of compact size and light weight, very convenient to use.Features:TV signal finder is microprocessor controlled, making it very reliable and accurate. Compact and lightweight.The input signal strength of DVB-T Antenna and TV antenna is displayed by LED.It Features simple pointing and can find local TV towers. Plug and play, easy to use.9V DC powered, it comes with a 9V battery power cable and a battery holder for 6 pcs 1.5V AA battery. (Batteries NOT included)Humanized design, with compass function for reference purposes.Note: Size and color may be slightly different due to manual measurement and different light conditions. Thanks for understanding.Specifications:Color: Black & OrangeMaterial: ABSFrequency: 40~862MHzPower: 9V DCInput Level: 57~117dBuVItem Size: 127 * 70 * 23mm / 5 * 2.76 * 0.91inItem Weight: 73g / 2.55ozPackage Size: 16.5 * 10.5 * 5.5cm / 6.50 * 4.13 * 2.17inPackage Weight: 163g / 5.73ozPackage List:1 * TV Signal Finder1 * Power Cable1 * Battery Holder1 * User Manual (English)"