Features: 1) Search the hot spot of 2.4G, 802.11b/ 802.11b/G wireless internet access signal 2) Tell you how strong the wireless Internet access signal is 3) Help you to keep off the trouble that you have to turn off your computer because of no wireless Internet access signal after you power (turn on) your computer 4) Legerity outline design and convenient for taking along 5) Convenient to use and don't need any computer software 6) The best wireless signal finder for the businessmen while traveling 7) The first choice for wireless network card, computer package and top grade commerce present Specifications: 1) 2.4G 802.11 b/g 2) 2 x 3V button batteries 3) Available detecting distance: 100 meters (±15 meters) in the open air 4) Dimensions: 6 x 3.8 x 1.3cm 5) 50 meters (+150 feet) detecting distance