After a cyber attack or natural disaster, a backup network of decentralized devices -- like residential solar panels, batteries, electric vehicles, heat pumps, and water heaters -- could restore ...
Compared to Positive grid's more traditional amplifiers, the Spark 2 and Spark Mini Vai are both slightly more expensive than ...
Guitar-specific headphones meet a wireless transmitter, and it's all tied together with Positive Grid's Spark app ...
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