A quick look at the Netgear Mini N300 Mbps Wi-Fi Range Extender with External Antennas before a review.

Ideal for extending Wi-Fi to devices like the iPhone, Samsung Galaxy, iPad, PlayStation, Kindle, FireTV and Alexa
Convenient wall-plug design and extend Wi-Fi up to 300 Mbps
Works with any standard router or gateway
Fast Ethernet port to connect a wired device
External antennas for high-performance

This is available for the low price of £14.99 on Amazon