3.9” x 3.9” x 3.5” (100mm x 100mm x 89 mm) 3.9” x 3.9” x 3.5” (100mm x 100mm x 89 mm) Weight 10.7 oz (304g) Actual size and weight may vary by manufacturing process Audio 1.73” (44 mm) front-firing speaker, Lossless High Definition Wifi connectivity Dual-band Wi-Fi supports 802.11a/b/g/n/ac (2.4 and 5 GHz) networks. Does not support connecting to ad-hoc (or peer-to-peer) wifi networks. Amazon Sidewalk Sidewalk uses Echo and Ring devices to securely keep other devices connected and help find lost items by reporting their approximate location to the owner. Sidewalk can enable supported devices to remain connected even when wifi is lost or the supported devices are outside the range of their home wifi. Sidewalk uses a small portion of your internet bandwidth and the approximate location of your devices to provide these benefits to you and your neighbors. Sidewalk is turned on for your device unless you have previously turned it off. You can turn off Sidewalk at any time. Learn more about Amazon Sidewalk. Smart Home Device Compatibility WiFi, Bluetooth Low Energy Mesh, and Matter Bluetooth connectivity Advanced Audio Distribution Profile (A2DP) support for audio streaming from your mobile device to Echo Dot or from Echo Dot to your Bluetooth speaker. Audio/Video Remote Control Profile (AVRCP) for voice control of connected mobile devices. Hands-free voice control is not supported for Mac OS X devices. Bluetooth speakers requiring PIN codes are not supported.