Echo Dot Size 99x 99 x 43 mm Weight 300 g (Actual size and weight may vary by configuration and manufacturing process) Wi-Fi Connectivity Dual-band Wi-Fi supports 802.11 a/b/g/n (2.4 and 5 GHz) networks. Does not support connecting to ad-hoc (or peer-to-peer) Wi-Fi networks. Generic name Smart speakers System Requirements Echo Dot comes ready to connect to your Wi-Fi. The Alexa App is compatible with Fire OS, Android, and iOS devices and also accessible via your web browser. Certain skills and services may require subscription or other fees. Audio Built-in speaker for voice feedback when not connected to external speakers. 3.5 mm stereo audio output for use with external speakers (audio cable not included). 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. Warranty and Service Echo dot is sold with a limited warranty of one year. Use of Echo dot is subject to the terms Item quantity 1 Country of origin China Included in the Box Echo Dot, power adaptor (15W), and Quick Start Guide.