The Calsup’s replaceable battery is good for up to nine hours at 50 percent volume, and it’s rechargeable using the USB-C port. It won’t be as loud as a loud party speaker, but up to 100 Culsup speakers can be connected and synced wirelessly to fill a larger space with music. However, while Ikea announced white, pink and lime green color options at CES, Calsup is currently only available in white and green color options on its US online store.
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