Sonos is preparing for the release of a new product that is likely to be the company’s second portable speaker with a rechargeable battery. The unannounced device is shown in testing diagrams to have a wireless charging dock and offer both Bluetooth and Wi-Fi 5 (802.11ac) wireless technology.

The FCC label reveals that this new product uses less power than existing Sonos speakers like the move. The design is visible on the bottom surface of the product.

The current Sonos move was leaked soon after its own FCC filing. At a hefty 6.6 pounds, it’s a less practical speaker for taking on the go.

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This would be the first speaker from Sonos to include Wi-Fi 5. The move supports Wi-Fi 4 (802.11n).