Quick overview from the supplier:
Wireless Range Extender TP-LINK "TL-WA855RE"
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Boosts your existing Wi-Fi coverage to deliver fast and reliable wired and wireless connectivity
External antennas for faster and more reliable Wi-Fi
Supports AP mode which creates a new Wi-Fi Access point
Easily expand wireless coverage at a push of the Range Extender button
Set the Power Schedule for the range extender for power-saving
Works with Any Wi-Fi Router
