Amazon.com: Echo (2nd Generation) – Smart speaker with …

Dual-band Wi-Fi supports 802.11 a/b/g/n (2.4 and 5 GHz) networks. WiFi 6 (802.11 ax) is not currently supported. Does not support connecting to ad-hoc (or peer-to-peer) Wi-Fi networks. Bluetooth connectivity. Advanced Audio Distribution Profile (A2DP) support for audio streaming from your mobile device to Echo or from Echo to your Bluetooth …

https://www.amazon.com/all-new-amazon-echo-speaker-with-wifi-alexa-heather-gray/dp/B0749WVS7J