Wireless-N WIFI Repeater - boxed and unused.

The details from the company and please don't ask me to explain:-

Wifi extender booster, wifi booster, wifi repeater with Ethernet Port, Covers up to 3600 Sq.Ft and 45 Devices, Quick Setup, UK plug (White)

【Super Signal Coverage】High Speed and High range coverage to boost the wireless coverage in all WLAN networks ,Extend WiFi signal to dead zone,create a stronger signal with transmission rate up to 300Mbps. You can online games, video conferences and even play 4K high-definition video anytime and anywhere at home (UK plug).
• 【Supports 2 Modes】Wi-Fi Extender has Ethernet Ports with Repeater/AP, can easily turn your wired Internet connection into a wireless access point. Most home users will set it up in one of two ways: Range extender (it connects to your existing wireless network wirelessly and enhances/extends the signal) or Access Point (it connects to the Internet or your existing network via Ethernet and then broadcasts the wireless signal .
• 【Wide Compatibility】Compatible with any wireless network devices that comply with the agreement of 802.11N/B/G, Router, Modem and Wi-Fi devices like Smartphone,Tablet, Laptop,Smart TV etc.
• 【Safe Internet Environment】This Wifi extender can maximise network security, ensure your network safety problem. It plays an effective role in preventing others from stealing your network, protecting your important data, and avoiding Wi-Fi interference and privacy issues. Supports Wireless Security: WPA/WPA2. Ideal for home, company and travel in use.
• 【One-touch set up】Tap WPS connects to your device within 1 minutes, Wall plug design and portability. Or use the web browser on your smartphone/tablet /PC for settings. It is easy to set up according to the user manual, without complicated steps and techniques.