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 x 70 x 23mm or 5 x 2.76 x 0.91in Item Weight: 73g or 2.55oz Package Size: 16.5 x 10.5 x 5.5cm or 6.50 x 4.13 x 2.17in Package Weight: 163g or 5.73oz Package List: 1 x TV Signal Finder 1 x Power Cable 1 x Battery Holder 1 x User Manual (English)