Amazon Echo Plus with built-in smart home hub. Premium sound and voice control. Black and gray design. Color Charcoal Size 5.8in x 3.4in x 3.4in Wi-Fi Connectivity Dual-band Wi-Fi supports 802.11 a/b/g/n/ac (2.4 and 5 GHz) networks. 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 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 Included in the box Echo 2nd Gen power adapter (21W) Quick Start Guide