Strong Signal and Wide Coverage With 2 external antennas , A9 can provide strong signal and extend the existing WiFi coverage to 200 square metres. Also, by optimizing the software and hardware, the anti-interference ability is improved, so that A9 can provide stable signal and guarantee the large WiFi coverage. One Button Extension Designed with an extending button, A9 can extend the wireless router\'s WiFi immediately by pressing the wireless router\'s WPS button once, and within 2 minutes, pressing the Range Extender button. Just plug and play and it is easy to set up. Smart Signal LED Indicator Once connected with the existing WiFi, It is easy to find the best location for the extender according to the smart WiFi signal LED indicator, so that A9 can achieve the best coverage and works better. Key Features Frequency: 2.4 GHz Wireless standards: b/g/n Transfer speed: N300 Dimension: 111 x 56 x 47.7 mm