Amazon Echo (4. Generation)

Amazon Echo (4. Generation). Virtual assistant: Amazon Alexa, Shape: Spheric, Product colour: Charcoal. Tweeter diameter: 2 cm, Woofer diameter: 7.62 cm, Volume control: Buttons. Connectivity technology: Wireless, Wi-Fi standards: 802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi band: Dual-band (2.4 GHz / 5 GHz). Power source type: DC. Width: 144 mm, Depth: 144 mm, Height: 133 mm