With the BT Mini Whole Home Wi-Fi, Additional Disc you can extend your wi-fi throughout your home. Perfect for families or households that want all their devices connected to a strong, fast wi-fi signal in every room.These discs feature intelligent wi-fi that covers the whole home. Placing the discs around your home gives you full control and gets rid of wi-fi dead spots. Automatically connects your devices to the fastest, strongest signal as you move around. Even with multiple devices connected you won\'t lose speed anywhere in your homeNow you can have TV, films, music and games on any device, in any room, with no dead spots or drop-outs.The super smart app locates the best place for your discs, and gives you ultimate control over your broadband. Use the app to view your network, see who\'s online and even pause the internet. Dual-band AC1200 wi-fi gives you fast wi-fi as you move from room to room. The discs remove dead spots, creating a complete wi-fi network, so every device stays connected everywhere in your home.These discs only work with other Mini Whole Home Wi-Fi discsHow many discs do you need? - Smaller homes and flats (1-2 bedrooms) - 2 discs recommended- Average homes (3-5 bedrooms) - 3 discs recommended- Large homes (6+ bedrooms) - 3 discs + add-on disc reccomendedFeaturesAlways connected to a strong Wi-Fi signal in every roomWorks with all broadband providersThese discs only work with other Mini Whole Home Wi-Fi discsSpecifications Product Description: BT Mini Whole Home Wi-Fi Add-on disc - radio access pointDevice Type: Radio access pointForm Factor: ExternalData Link Protocol: IEEE 802.11b, IEEE 802.11a, IEEE 802.11g, IEEE 802.11n, IEEE 802.11acFrequency Band: 2.4 GHz, 5 GHzPerformance: Maximum data rate (2.4 GHz): 300 Mbps , Maximum data rate (5 GHz): 866 MbpsPower: AC 120/230 V (50/60 Hz)Dimensions (WxDxH): 12 cm x 12 cm x 5 cmManufacturer Warranty: 3-year warranty