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 & Orange Material: ABS Frequency: 40~862MHz Power: 9V DC Input Level: 57~117dBuV Item Size: 127 * 70 * 23mm / 5 * 2.76 * 0.91in Item Weight: 73g / 2.55oz Package Size: 16.5 * 10.5 * 5.5cm / 6.50 * 4.13 * 2.17in Package Weight: 163g / 5.73oz Package List: 1 * TV Signal Finder 1 * Power Cable 1 * Battery Holder 1 * User Manual (English)